diff --git a/extensions/emmet/package.json b/extensions/emmet/package.json
index 4d26781cfd2..2609279bc0a 100644
--- a/extensions/emmet/package.json
+++ b/extensions/emmet/package.json
@@ -84,12 +84,11 @@
           "description": "%emmetExclude%"
         },
         "emmet.extensionsPath": {
-          "type": [
-            "string",
-            "array",
-            "null"
-          ],
-          "default": null,
+          "type": "array",
+			    "items": {
+				    "type": "string"
+          },
+			    "default": [],
           "description": "%emmetExtensionsPath%"
         },
         "emmet.triggerExpansionOnTab": {
diff --git a/extensions/emmet/src/emmetCommon.ts b/extensions/emmet/src/emmetCommon.ts
index cb8dc21c586..b4c57b134be 100644
--- a/extensions/emmet/src/emmetCommon.ts
+++ b/extensions/emmet/src/emmetCommon.ts
@@ -17,11 +17,12 @@ import { fetchEditPoint } from './editPoint';
 import { fetchSelectItem } from './selectItem';
 import { evaluateMathExpression } from './evaluateMathExpression';
 import { incrementDecrement } from './incrementDecrement';
-import { LANGUAGE_MODES, getMappingForIncludedLanguages, updateEmmetExtensionsPath, getPathBaseName, getSyntaxes, getEmmetMode } from './util';
+import { LANGUAGE_MODES, getMappingForIncludedLanguages, updateEmmetExtensionsPath, migrateEmmetExtensionsPath, getPathBaseName, getSyntaxes, getEmmetMode } from './util';
 import { reflectCssValue } from './reflectCssValue';
 import { addFileToParseCache, removeFileFromParseCache } from './parseDocument';
 
 export function activateEmmetExtension(context: vscode.ExtensionContext) {
+	migrateEmmetExtensionsPath();
 	registerCompletionProviders(context);
 	updateEmmetExtensionsPath();
 
diff --git a/extensions/emmet/src/util.ts b/extensions/emmet/src/util.ts
index 2894647a472..ba81b46dfe7 100644
--- a/extensions/emmet/src/util.ts
+++ b/extensions/emmet/src/util.ts
@@ -49,6 +49,34 @@ export function updateEmmetExtensionsPath(forceRefresh: boolean = false) {
 	}
 }
 
+/**
+ * Migrate old configuration(string) for extensionsPath to new type(string[])
+ * https://github.com/microsoft/vscode/issues/117517
+ */
+export function migrateEmmetExtensionsPath() {
+	// Get the detail info of emmet.extensionsPath setting
+	let config = vscode.workspace.getConfiguration().inspect('emmet.extensionsPath');
+
+	// Update Global setting if the value type is string or the value is null
+	if (typeof config?.globalValue === 'string') {
+		vscode.workspace.getConfiguration().update('emmet.extensionsPath', [config.globalValue], true);
+	} else if (config?.globalValue === null) {
+		vscode.workspace.getConfiguration().update('emmet.extensionsPath', [], true);
+	}
+	// Update Workspace setting if the value type is string or the value is null
+	if (typeof config?.workspaceValue === 'string') {
+		vscode.workspace.getConfiguration().update('emmet.extensionsPath', [config.workspaceValue], false);
+	} else if (config?.workspaceValue === null) {
+		vscode.workspace.getConfiguration().update('emmet.extensionsPath', [], false);
+	}
+	// Update WorkspaceFolder setting if the value type is string or the value is null
+	if (typeof config?.workspaceFolderValue === 'string') {
+		vscode.workspace.getConfiguration().update('emmet.extensionsPath', [config.workspaceFolderValue]);
+	} else if (config?.workspaceFolderValue === null) {
+		vscode.workspace.getConfiguration().update('emmet.extensionsPath', []);
+	}
+}
+
 /**
  * Mapping between languages that support Emmet and completion trigger characters
  */