diff --git a/packages/uni-api/src/index.ts b/packages/uni-api/src/index.ts
index cd373cc607da8316fa6c06fb67372c1f03b84b9b..4a466df54fa161a52ff8337a6305cc307083a26c 100644
--- a/packages/uni-api/src/index.ts
+++ b/packages/uni-api/src/index.ts
@@ -36,7 +36,11 @@ export * from './protocols/device/soterAuthentication'
 
 export * from './protocols/storage/storage'
 
+export * from './protocols/file/saveFile'
+export * from './protocols/file/getSavedFileList'
+export * from './protocols/file/removeSavedFile'
 export * from './protocols/file/getFileInfo'
+export * from './protocols/file/getSavedFileInfo'
 export * from './protocols/file/openDocument'
 
 export * from './protocols/keyboard/keyboard'
diff --git a/packages/uni-api/src/protocols/file/getSavedFileInfo.ts b/packages/uni-api/src/protocols/file/getSavedFileInfo.ts
new file mode 100644
index 0000000000000000000000000000000000000000..c1b3ecacf053f3e36a93d1f3e9a6b8c40bbcef5d
--- /dev/null
+++ b/packages/uni-api/src/protocols/file/getSavedFileInfo.ts
@@ -0,0 +1,21 @@
+import { getRealPath } from '@dcloudio/uni-platform'
+
+export const API_GET_SAVED_FILE_INFO = 'getSavedFileInfo'
+export type API_TYPE_GET_SAVED_FILE_INFO = typeof uni.getSavedFileInfo
+
+export const GetSavedFileInfoOptions: ApiOptions<API_TYPE_GET_SAVED_FILE_INFO> =
+  {
+    formatArgs: {
+      filePath(filePath, params) {
+        params.filePath = getRealPath(filePath)
+      },
+    },
+  }
+
+export const GetSavedFileInfoProtocol: ApiProtocol<API_TYPE_GET_SAVED_FILE_INFO> =
+  {
+    filePath: {
+      type: String,
+      required: true,
+    },
+  }
diff --git a/packages/uni-api/src/protocols/file/getSavedFileList.ts b/packages/uni-api/src/protocols/file/getSavedFileList.ts
new file mode 100644
index 0000000000000000000000000000000000000000..46348e8f4f2370472d14a2cfaa687d813fcba684
--- /dev/null
+++ b/packages/uni-api/src/protocols/file/getSavedFileList.ts
@@ -0,0 +1,2 @@
+export const API_GET_SAVED_LIST = 'getSavedFileList'
+export type API_TYPE_GET_SAVED_LIST = typeof uni.getSavedFileList
diff --git a/packages/uni-api/src/protocols/file/removeSavedFile.ts b/packages/uni-api/src/protocols/file/removeSavedFile.ts
new file mode 100644
index 0000000000000000000000000000000000000000..01186196550432fcfa1fd4f6c8078f95390a345f
--- /dev/null
+++ b/packages/uni-api/src/protocols/file/removeSavedFile.ts
@@ -0,0 +1,19 @@
+import { getRealPath } from '@dcloudio/uni-platform'
+export const API_REMOVE_SAVED_FILE = 'removeSavedFile'
+export type API_TYPE_REMOVE_SAVED_FILE = typeof uni.removeSavedFile
+
+export const RemoveSavedFileOptions: ApiOptions<API_TYPE_REMOVE_SAVED_FILE> = {
+  formatArgs: {
+    filePath(filePath, params) {
+      params.filePath = getRealPath(filePath)
+    },
+  },
+}
+
+export const RemoveSavedFileProtocol: ApiProtocol<API_TYPE_REMOVE_SAVED_FILE> =
+  {
+    filePath: {
+      type: String,
+      required: true,
+    },
+  }
diff --git a/packages/uni-api/src/protocols/file/saveFile.ts b/packages/uni-api/src/protocols/file/saveFile.ts
new file mode 100644
index 0000000000000000000000000000000000000000..056cc8fa23b0cea077af14b9bb274db2f0d8532f
--- /dev/null
+++ b/packages/uni-api/src/protocols/file/saveFile.ts
@@ -0,0 +1,18 @@
+import { getRealPath } from '@dcloudio/uni-platform'
+export const API_SAVE_FILE = 'saveFile'
+export type API_TYPE_SAVE_FILE = typeof uni.saveFile
+
+export const SaveFileOptions: ApiOptions<API_TYPE_SAVE_FILE> = {
+  formatArgs: {
+    tempFilePath(savedFilePath, params) {
+      params.tempFilePath = getRealPath(savedFilePath)
+    },
+  },
+}
+
+export const SaveFileProtocol: ApiProtocol<API_TYPE_SAVE_FILE> = {
+  tempFilePath: {
+    type: String,
+    required: true,
+  },
+}
diff --git a/packages/uni-app-plus/src/service/api/file/getSavedFileInfo.ts b/packages/uni-app-plus/src/service/api/file/getSavedFileInfo.ts
new file mode 100644
index 0000000000000000000000000000000000000000..869cb203c5b5828067db20c4e6ef11c22c5b69ea
--- /dev/null
+++ b/packages/uni-app-plus/src/service/api/file/getSavedFileInfo.ts
@@ -0,0 +1,34 @@
+import {
+  defineAsyncApi,
+  API_GET_SAVED_FILE_INFO,
+  API_TYPE_GET_SAVED_FILE_INFO,
+  GetSavedFileInfoProtocol,
+  GetSavedFileInfoOptions,
+} from '@dcloudio/uni-api'
+import { warpPlusErrorCallback } from '../../../helpers/plus'
+
+export const getSavedFileInfo = <API_TYPE_GET_SAVED_FILE_INFO>defineAsyncApi(
+  API_GET_SAVED_FILE_INFO,
+  ({ filePath }, { resolve, reject }) => {
+    const errorCallback = warpPlusErrorCallback(reject)
+
+    plus.io.resolveLocalFileSystemURL(
+      filePath,
+      (entry) => {
+        entry.getMetadata(
+          (meta) => {
+            resolve({
+              createTime: meta.modificationTime!.getTime(),
+              size: meta.size!,
+            })
+          },
+          errorCallback,
+          false
+        )
+      },
+      errorCallback
+    )
+  },
+  GetSavedFileInfoProtocol,
+  GetSavedFileInfoOptions
+)
diff --git a/packages/uni-app-plus/src/service/api/file/getSavedFileList.ts b/packages/uni-app-plus/src/service/api/file/getSavedFileList.ts
new file mode 100644
index 0000000000000000000000000000000000000000..2ba294a47e3ad122a32607adfacd8b9502705e91
--- /dev/null
+++ b/packages/uni-app-plus/src/service/api/file/getSavedFileList.ts
@@ -0,0 +1,72 @@
+import {
+  defineAsyncApi,
+  API_GET_SAVED_LIST,
+  API_TYPE_GET_SAVED_LIST,
+} from '@dcloudio/uni-api'
+import { warpPlusErrorCallback } from '../../../helpers/plus'
+
+const SAVED_DIR = 'uniapp_save'
+
+function getSavedFileDir(
+  success: (res: any) => void,
+  fail: (err: any) => void
+) {
+  fail = fail || function () {}
+  plus.io.requestFileSystem(
+    plus.io.PRIVATE_DOC,
+    (fs) => {
+      // 请求_doc fs
+      fs.root!.getDirectory(
+        SAVED_DIR,
+        {
+          // 获取文件保存目录对象
+          create: true,
+        },
+        success,
+        fail
+      )
+    },
+    fail
+  )
+}
+
+export const getSavedFileList = <API_TYPE_GET_SAVED_LIST>(
+  defineAsyncApi(API_GET_SAVED_LIST, (_, { resolve, reject }) => {
+    const errorCallback = warpPlusErrorCallback(reject)
+
+    getSavedFileDir((entry) => {
+      var reader = entry.createReader()
+
+      var fileList: object[] = []
+      reader.readEntries((entries: any[]) => {
+        if (entries && entries.length) {
+          entries.forEach((entry) => {
+            entry.getMetadata(
+              (meta: {
+                modificationTime: { getTime: () => void }
+                size: any
+              }) => {
+                fileList.push({
+                  filePath: plus.io.convertAbsoluteFileSystem(entry.fullPath),
+                  createTime: meta.modificationTime.getTime(),
+                  size: meta.size,
+                })
+                if (fileList.length === entries.length) {
+                  resolve({
+                    fileList,
+                  })
+                }
+              },
+              errorCallback,
+              false
+            )
+          })
+        } else {
+          resolve({
+            fileList,
+          })
+        }
+      }, errorCallback)
+    }, errorCallback)
+  })
+)
diff --git a/packages/uni-app-plus/src/service/api/file/removeSavedFile.ts b/packages/uni-app-plus/src/service/api/file/removeSavedFile.ts
new file mode 100644
index 0000000000000000000000000000000000000000..0bc6c73161e71d3daacb17062f680c7a7d6cf60d
--- /dev/null
+++ b/packages/uni-app-plus/src/service/api/file/removeSavedFile.ts
@@ -0,0 +1,27 @@
+import {
+  defineAsyncApi,
+  API_REMOVE_SAVED_FILE,
+  API_TYPE_REMOVE_SAVED_FILE,
+  RemoveSavedFileProtocol,
+  RemoveSavedFileOptions,
+} from '@dcloudio/uni-api'
+import { warpPlusErrorCallback } from '../../../helpers/plus'
+
+export const removeSavedFile = <API_TYPE_REMOVE_SAVED_FILE>defineAsyncApi(
+  API_REMOVE_SAVED_FILE,
+  ({ filePath }, { resolve, reject }) => {
+    const errorCallback = warpPlusErrorCallback(reject)
+
+    plus.io.resolveLocalFileSystemURL(
+      filePath,
+      (entry) => {
+        entry.remove(() => {
+          resolve()
+        }, errorCallback)
+      },
+      errorCallback
+    )
+  },
+  RemoveSavedFileProtocol,
+  RemoveSavedFileOptions
+)
diff --git a/packages/uni-app-plus/src/service/api/file/saveFile.ts b/packages/uni-app-plus/src/service/api/file/saveFile.ts
new file mode 100644
index 0000000000000000000000000000000000000000..2d78c73bb272308fd89246c4a664e1c03a066faf
--- /dev/null
+++ b/packages/uni-app-plus/src/service/api/file/saveFile.ts
@@ -0,0 +1,68 @@
+import {
+  defineAsyncApi,
+  API_SAVE_FILE,
+  API_TYPE_SAVE_FILE,
+  SaveFileProtocol,
+  SaveFileOptions,
+} from '@dcloudio/uni-api'
+import { warpPlusErrorCallback } from '../../../helpers/plus'
+import { getExtName } from '../../../helpers/file'
+let index = 0
+
+const SAVED_DIR = 'uniapp_save'
+const SAVE_PATH = `_doc/${SAVED_DIR}`
+
+function getSavedFileDir(
+  success: (res: any) => void,
+  fail: (err: any) => void
+) {
+  fail = fail || function () {}
+  plus.io.requestFileSystem(
+    plus.io.PRIVATE_DOC,
+    (fs) => {
+      // 请求_doc fs
+      fs.root!.getDirectory(
+        SAVED_DIR,
+        {
+          // 获取文件保存目录对象
+          create: true,
+        },
+        success,
+        fail
+      )
+    },
+    fail
+  )
+}
+
+export const saveFile = <API_TYPE_SAVE_FILE>defineAsyncApi(
+  API_SAVE_FILE,
+  ({ tempFilePath }, { resolve, reject }) => {
+    const errorCallback = warpPlusErrorCallback(reject)
+    const fileName = `${Date.now()}${index++}${getExtName(tempFilePath)}`
+
+    plus.io.resolveLocalFileSystemURL(
+      tempFilePath,
+      (entry) => {
+        // 读取临时文件 FileEntry
+        getSavedFileDir((dir) => {
+          entry.copyTo(
+            dir,
+            fileName,
+            () => {
+              // 复制临时文件 FileEntry，为了避免把相册里的文件删除，使用 copy，微信中是要删除临时文件的
+              const savedFilePath = SAVE_PATH + '/' + fileName
+              resolve({
+                savedFilePath,
+              })
+            },
+            errorCallback
+          )
+        }, errorCallback)
+      },
+      errorCallback
+    )
+  },
+  SaveFileProtocol,
+  SaveFileOptions
+)