diff --git a/packages/happy-dom/src/nodes/document/Document.ts b/packages/happy-dom/src/nodes/document/Document.ts
index b7738ebe0..3518766f4 100644
--- a/packages/happy-dom/src/nodes/document/Document.ts
+++ b/packages/happy-dom/src/nodes/document/Document.ts
@@ -43,6 +43,7 @@ import IHTMLBaseElement from '../html-base-element/IHTMLBaseElement';
 import IAttr from '../attr/IAttr';
 import IProcessingInstruction from '../processing-instruction/IProcessingInstruction';
 import ProcessingInstruction from '../processing-instruction/ProcessingInstruction';
+import VisibilityStateEnum from './VisibilityStateEnum';
 
 const PROCESSING_INSTRUCTION_TARGET_REGEXP = /^[a-z][a-z0-9-]+$/;
 
@@ -423,6 +424,32 @@ export default class Document extends Node implements IDocument {
 		return this.URL;
 	}
 
+	/**
+	 * Returns document visibility state.
+	 *
+	 * @returns the visibility state of the current document.
+	 * */
+	public get visibilityState(): VisibilityStateEnum {
+		if (this.defaultView) {
+			return VisibilityStateEnum.visible;
+		}
+
+		return VisibilityStateEnum.hidden;
+	}
+
+	/**
+	 * Returns document hidden state.
+	 *
+	 * @returns the hidden state of the current document.
+	 * */
+	public get hidden(): boolean {
+		if (this.defaultView) {
+			return false;
+		}
+
+		return true;
+	}
+
 	/**
 	 * Inserts a set of Node objects or DOMString objects after the last child of the ParentNode. DOMString objects are inserted as equivalent Text nodes.
 	 *
diff --git a/packages/happy-dom/src/nodes/document/IDocument.ts b/packages/happy-dom/src/nodes/document/IDocument.ts
index 6e31e9ad9..56e16eb04 100644
--- a/packages/happy-dom/src/nodes/document/IDocument.ts
+++ b/packages/happy-dom/src/nodes/document/IDocument.ts
@@ -20,6 +20,7 @@ import DocumentReadyStateEnum from './DocumentReadyStateEnum';
 import INodeList from '../node/INodeList';
 import Range from '../../range/Range';
 import IProcessingInstruction from '../processing-instruction/IProcessingInstruction';
+import VisibilityStateEnum from './VisibilityStateEnum';
 
 /**
  * Document.
@@ -41,6 +42,8 @@ export default interface IDocument extends IParentNode {
 	readonly characterSet: string;
 	readonly URL: string;
 	readonly documentURI: string;
+	readonly visibilityState: VisibilityStateEnum;
+	readonly hidden: boolean;
 	cookie: string;
 
 	// Events
diff --git a/packages/happy-dom/src/nodes/document/VisibilityStateEnum.ts b/packages/happy-dom/src/nodes/document/VisibilityStateEnum.ts
new file mode 100644
index 000000000..11b5944dc
--- /dev/null
+++ b/packages/happy-dom/src/nodes/document/VisibilityStateEnum.ts
@@ -0,0 +1,6 @@
+enum VisibilityStateEnum {
+	hidden = 'hidden',
+	visible = 'visible',
+	prerender = 'prerender'
+}
+export default VisibilityStateEnum;