diff --git a/packages/react-alert/src/style/index.less b/packages/react-alert/src/style/index.less
index ec119b7ac8..8239d2cb53 100644
--- a/packages/react-alert/src/style/index.less
+++ b/packages/react-alert/src/style/index.less
@@ -44,6 +44,7 @@
   }
   .w-modal-shown-title.w-modal-inner {
     .w-modal-header {
+      word-break: break-word;
       display: flex;
       padding-top: 15px;
       padding-right: 10px;
@@ -58,6 +59,7 @@
       }
     }
     .w-modal-body {
+      word-break: break-word;
       padding-top: 5px;
     }
   }