diff --git a/components/badge/style/index.less b/components/badge/style/index.less
index ff91df51011a..b5a984ca6e6a 100644
--- a/components/badge/style/index.less
+++ b/components/badge/style/index.less
@@ -23,7 +23,7 @@
     line-height: @badge-height;
     white-space: nowrap;
     text-align: center;
-    background: @highlight-color;
+    background: @badge-count-background;
     border-radius: @badge-height / 2;
     box-shadow: 0 0 0 1px @shadow-color-inverse;
     a,
diff --git a/components/form/demo/dep-debug.md b/components/form/demo/dep-debug.md
index 19371cef2096..ac8a520ebd3d 100644
--- a/components/form/demo/dep-debug.md
+++ b/components/form/demo/dep-debug.md
@@ -3,6 +3,7 @@ order: 99
 title:
   zh-CN: Dep Debug
   en-US: Dep Debug
+debug: true
 ---
 
 ## zh-CN
diff --git a/components/style/themes/default.less b/components/style/themes/default.less
index e519266b5930..709a11eef010 100644
--- a/components/style/themes/default.less
+++ b/components/style/themes/default.less
@@ -662,6 +662,7 @@
 @badge-font-weight: normal;
 @badge-status-size: 6px;
 @badge-text-color: @component-background;
+@badge-count-background: @highlight-color;
 
 // Rate
 // ---
diff --git a/components/tree/__tests__/__snapshots__/demo.test.js.snap b/components/tree/__tests__/__snapshots__/demo.test.js.snap
index b0df12b8bb38..b8108f641218 100644
--- a/components/tree/__tests__/__snapshots__/demo.test.js.snap
+++ b/components/tree/__tests__/__snapshots__/demo.test.js.snap
@@ -74,7 +74,7 @@ exports[`renders ./components/tree/demo/basic.md correctly 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-start"
+              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -127,7 +127,7 @@ exports[`renders ./components/tree/demo/basic.md correctly 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-start"
+              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end-first-level"
             />
             <span
               class="ant-tree-indent-unit ant-tree-indent-unit-start"
@@ -162,7 +162,7 @@ exports[`renders ./components/tree/demo/basic.md correctly 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-start"
+              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end-first-level"
             />
             <span
               class="ant-tree-indent-unit ant-tree-indent-unit-end"
@@ -197,7 +197,7 @@ exports[`renders ./components/tree/demo/basic.md correctly 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-end"
+              class="ant-tree-indent-unit ant-tree-indent-unit-end ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -250,7 +250,7 @@ exports[`renders ./components/tree/demo/basic.md correctly 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-end"
+              class="ant-tree-indent-unit ant-tree-indent-unit-end ant-tree-indent-unit-end-first-level"
             />
             <span
               class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end"
@@ -867,7 +867,7 @@ exports[`renders ./components/tree/demo/customized-icon.md correctly 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-start"
+              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -916,7 +916,7 @@ exports[`renders ./components/tree/demo/customized-icon.md correctly 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-end"
+              class="ant-tree-indent-unit ant-tree-indent-unit-end ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -1214,7 +1214,7 @@ exports[`renders ./components/tree/demo/directory.md correctly 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-start"
+              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -1263,7 +1263,7 @@ exports[`renders ./components/tree/demo/directory.md correctly 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-end"
+              class="ant-tree-indent-unit ant-tree-indent-unit-end ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -1842,7 +1842,7 @@ exports[`renders ./components/tree/demo/line.md correctly 1`] = `
           style="display:flex;flex-direction:column"
         >
           <div
-            class="ant-tree-treenode ant-tree-treenode-switcher-open ant-tree-treenode-leaf-last"
+            class="ant-tree-treenode ant-tree-treenode-switcher-open"
           >
             <span
               class="ant-tree-switcher ant-tree-switcher_open"
@@ -2176,6 +2176,47 @@ exports[`renders ./components/tree/demo/line.md correctly 1`] = `
               </span>
             </span>
           </div>
+          <div
+            class="ant-tree-treenode ant-tree-treenode-switcher-close ant-tree-treenode-leaf-last"
+          >
+            <span
+              class="ant-tree-switcher ant-tree-switcher_close"
+            >
+              <span
+                aria-label="plus-square"
+                class="anticon anticon-plus-square ant-tree-switcher-line-icon"
+                role="img"
+              >
+                <svg
+                  aria-hidden="true"
+                  class=""
+                  data-icon="plus-square"
+                  fill="currentColor"
+                  focusable="false"
+                  height="1em"
+                  viewBox="64 64 896 896"
+                  width="1em"
+                >
+                  <path
+                    d="M328 544h152v152c0 4.4 3.6 8 8 8h48c4.4 0 8-3.6 8-8V544h152c4.4 0 8-3.6 8-8v-48c0-4.4-3.6-8-8-8H544V328c0-4.4-3.6-8-8-8h-48c-4.4 0-8 3.6-8 8v152H328c-4.4 0-8 3.6-8 8v48c0 4.4 3.6 8 8 8z"
+                  />
+                  <path
+                    d="M880 112H144c-17.7 0-32 14.3-32 32v736c0 17.7 14.3 32 32 32h736c17.7 0 32-14.3 32-32V144c0-17.7-14.3-32-32-32zm-40 728H184V184h656v656z"
+                  />
+                </svg>
+              </span>
+            </span>
+            <span
+              class="ant-tree-node-content-wrapper ant-tree-node-content-wrapper-close"
+              title="parent 2"
+            >
+              <span
+                class="ant-tree-title"
+              >
+                parent 2
+              </span>
+            </span>
+          </div>
         </div>
       </div>
     </div>
@@ -2423,7 +2464,7 @@ exports[`renders ./components/tree/demo/switcher-icon.md correctly 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-start"
+              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -2469,7 +2510,7 @@ exports[`renders ./components/tree/demo/switcher-icon.md correctly 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-start"
+              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end-first-level"
             />
             <span
               class="ant-tree-indent-unit ant-tree-indent-unit-start"
@@ -2518,7 +2559,7 @@ exports[`renders ./components/tree/demo/switcher-icon.md correctly 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-start"
+              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end-first-level"
             />
             <span
               class="ant-tree-indent-unit"
@@ -2567,7 +2608,7 @@ exports[`renders ./components/tree/demo/switcher-icon.md correctly 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-start"
+              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end-first-level"
             />
             <span
               class="ant-tree-indent-unit ant-tree-indent-unit-end"
@@ -2616,7 +2657,7 @@ exports[`renders ./components/tree/demo/switcher-icon.md correctly 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit"
+              class="ant-tree-indent-unit ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -2662,7 +2703,7 @@ exports[`renders ./components/tree/demo/switcher-icon.md correctly 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-end"
+              class="ant-tree-indent-unit ant-tree-indent-unit-end ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
diff --git a/components/tree/__tests__/__snapshots__/directory.test.js.snap b/components/tree/__tests__/__snapshots__/directory.test.js.snap
index df58e8c8ed37..971d3ec8cb25 100644
--- a/components/tree/__tests__/__snapshots__/directory.test.js.snap
+++ b/components/tree/__tests__/__snapshots__/directory.test.js.snap
@@ -91,7 +91,7 @@ exports[`Directory Tree DirectoryTree should expend all when use treeData and de
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end"
+              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -161,7 +161,7 @@ exports[`Directory Tree DirectoryTree should expend all when use treeData and de
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end"
+              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end ant-tree-indent-unit-end-first-level"
             />
             <span
               class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end"
@@ -462,7 +462,7 @@ exports[`Directory Tree defaultExpandAll 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-start"
+              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -511,7 +511,7 @@ exports[`Directory Tree defaultExpandAll 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-end"
+              class="ant-tree-indent-unit ant-tree-indent-unit-end ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -1616,7 +1616,7 @@ exports[`Directory Tree expand with state control click 1`] = `
               class="ant-tree-indent"
             >
               <span
-                class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end"
+                class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end ant-tree-indent-unit-end-first-level"
               />
             </span>
             <span
@@ -1759,7 +1759,7 @@ exports[`Directory Tree expand with state control doubleClick 1`] = `
               class="ant-tree-indent"
             >
               <span
-                class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end"
+                class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end ant-tree-indent-unit-end-first-level"
               />
             </span>
             <span
@@ -1964,7 +1964,7 @@ exports[`Directory Tree expandedKeys update 1`] = `
               class="ant-tree-indent"
             >
               <span
-                class="ant-tree-indent-unit ant-tree-indent-unit-start"
+                class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end-first-level"
               />
             </span>
             <span
@@ -2013,7 +2013,7 @@ exports[`Directory Tree expandedKeys update 1`] = `
               class="ant-tree-indent"
             >
               <span
-                class="ant-tree-indent-unit ant-tree-indent-unit-end"
+                class="ant-tree-indent-unit ant-tree-indent-unit-end ant-tree-indent-unit-end-first-level"
               />
             </span>
             <span
@@ -2312,7 +2312,7 @@ exports[`Directory Tree group select 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-start"
+              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -2361,7 +2361,7 @@ exports[`Directory Tree group select 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-end"
+              class="ant-tree-indent-unit ant-tree-indent-unit-end ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -2659,7 +2659,7 @@ exports[`Directory Tree group select 2`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-start"
+              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -2708,7 +2708,7 @@ exports[`Directory Tree group select 2`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-end"
+              class="ant-tree-indent-unit ant-tree-indent-unit-end ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -3058,7 +3058,7 @@ exports[`Directory Tree selectedKeys update 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-start"
+              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -3107,7 +3107,7 @@ exports[`Directory Tree selectedKeys update 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-end"
+              class="ant-tree-indent-unit ant-tree-indent-unit-end ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
diff --git a/components/tree/__tests__/__snapshots__/index.test.js.snap b/components/tree/__tests__/__snapshots__/index.test.js.snap
index 2b93558cc63d..19ffcc00cf9c 100644
--- a/components/tree/__tests__/__snapshots__/index.test.js.snap
+++ b/components/tree/__tests__/__snapshots__/index.test.js.snap
@@ -187,7 +187,7 @@ exports[`Tree showLine is object type should render correctly 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-start"
+              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -236,7 +236,7 @@ exports[`Tree showLine is object type should render correctly 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-start"
+              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end-first-level"
             />
             <span
               class="ant-tree-indent-unit ant-tree-indent-unit-start"
@@ -268,7 +268,7 @@ exports[`Tree showLine is object type should render correctly 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-start"
+              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end-first-level"
             />
             <span
               class="ant-tree-indent-unit"
@@ -300,7 +300,7 @@ exports[`Tree showLine is object type should render correctly 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-start"
+              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end-first-level"
             />
             <span
               class="ant-tree-indent-unit ant-tree-indent-unit-end"
@@ -332,7 +332,7 @@ exports[`Tree showLine is object type should render correctly 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit"
+              class="ant-tree-indent-unit ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -381,7 +381,7 @@ exports[`Tree showLine is object type should render correctly 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-end"
+              class="ant-tree-indent-unit ant-tree-indent-unit-end ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -476,7 +476,7 @@ exports[`Tree switcherIcon in Tree could be string 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-start"
+              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -501,7 +501,7 @@ exports[`Tree switcherIcon in Tree could be string 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-end"
+              class="ant-tree-indent-unit ant-tree-indent-unit-end ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -572,7 +572,7 @@ exports[`Tree switcherIcon should be loading icon when loadData 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-start"
+              class="ant-tree-indent-unit ant-tree-indent-unit-start ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
@@ -621,7 +621,7 @@ exports[`Tree switcherIcon should be loading icon when loadData 1`] = `
             class="ant-tree-indent"
           >
             <span
-              class="ant-tree-indent-unit ant-tree-indent-unit-end"
+              class="ant-tree-indent-unit ant-tree-indent-unit-end ant-tree-indent-unit-end-first-level"
             />
           </span>
           <span
diff --git a/components/tree/demo/line.md b/components/tree/demo/line.md
index 923539511be4..1e3a7c656bf7 100644
--- a/components/tree/demo/line.md
+++ b/components/tree/demo/line.md
@@ -56,6 +56,22 @@ const treeData = [
       },
     ],
   },
+  {
+    title: 'parent 2',
+    key: '0-1',
+    icon: <CarryOutOutlined />,
+    children: [
+      {
+        title: 'parent 2-0',
+        key: '0-1-0',
+        icon: <CarryOutOutlined />,
+        children: [
+          { title: 'leaf', key: '0-1-0-0', icon: <CarryOutOutlined /> },
+          { title: 'leaf', key: '0-1-0-1', icon: <CarryOutOutlined /> },
+        ],
+      },
+    ]
+  },
 ];
 
 const Demo: React.FC<{}> = () => {
diff --git a/components/tree/style/mixin.less b/components/tree/style/mixin.less
index 42c4f97ba0fb..626218e50c70 100644
--- a/components/tree/style/mixin.less
+++ b/components/tree/style/mixin.less
@@ -218,6 +218,15 @@
           position: relative;
           height: 100%;
 
+          &:first-child::after {
+            position: absolute;
+            top: calc(100% - @tree-title-height - 4px);
+            right: @tree-title-height / 2;
+            bottom: -4px;
+            border-right: 1px solid @border-color-base;
+            content: '';
+          }
+
           &::before {
             position: absolute;
             top: calc(100% - 4px);
@@ -227,10 +236,9 @@
             content: '';
           }
 
-          &-end {
-            &::before {
-              display: none;
-            }
+          &-end::before,
+          &-end-first-level::after {
+            display: none;
           }
         }
       }
@@ -238,6 +246,7 @@
       /* Motion should hide line of measure */
       .@{custom-tree-node-prefix-cls}-motion:not(.@{tree-motion}-leave):not(.@{tree-motion}-appear-active) {
         .@{custom-tree-prefix-cls}-indent-unit {
+          &::after,
           &::before {
             display: none;
           }
diff --git a/package.json b/package.json
index 391d3018cac5..3c28c29679b1 100644
--- a/package.json
+++ b/package.json
@@ -142,7 +142,7 @@
     "rc-tabs": "~11.6.0",
     "rc-textarea": "~0.3.0",
     "rc-tooltip": "~4.2.0",
-    "rc-tree": "~3.8.5",
+    "rc-tree": "~3.9.0",
     "rc-tree-select": "~4.1.1",
     "rc-trigger": "~4.4.0",
     "rc-upload": "~3.2.0",