diff --git a/packages/uni-app-plus/src/service/api/file/openDocument.ts b/packages/uni-app-plus/src/service/api/file/openDocument.ts
new file mode 100644
index 0000000000000000000000000000000000000000..919a95a887e0a7646f4960333c5accbb653edcef
--- /dev/null
+++ b/packages/uni-app-plus/src/service/api/file/openDocument.ts
@@ -0,0 +1,26 @@
+import {
+  API_OPEN_DOCUMENT,
+  API_TYPE_OPEN_DOCUMENT,
+  defineAsyncApi,
+  OpenDocumentProtocol,
+  OpenDocumentOptions,
+} from '@dcloudio/uni-api'
+
+import { getRealPath } from '@dcloudio/uni-platform'
+export const openDocument = defineAsyncApi<API_TYPE_OPEN_DOCUMENT>(
+  API_OPEN_DOCUMENT,
+  ({ filePath, fileType }, { resolve, reject }) => {
+    plus.io.resolveLocalFileSystemURL(
+      getRealPath(filePath),
+      (entry) => {
+        plus.runtime.openFile(getRealPath(filePath))
+        resolve()
+      },
+      (err) => {
+        reject('openDocument:fail ' + err.message)
+      }
+    )
+  },
+  OpenDocumentProtocol,
+  OpenDocumentOptions
+)
diff --git a/packages/uni-app-plus/src/service/api/index.ts b/packages/uni-app-plus/src/service/api/index.ts
index e513a335809899e8ab9c45ed1e003cf87e5e9a9d..094dc04c6ed216ca22de7f1bc7811721293a8e67 100644
--- a/packages/uni-app-plus/src/service/api/index.ts
+++ b/packages/uni-app-plus/src/service/api/index.ts
@@ -1,5 +1,6 @@
 export * from './storage/storage'
 export * from './file/getFileInfo'
+export * from './file/openDocument'
 
 export * from './device/compass'
 export * from './device/vibrate'