diff --git a/package.json b/package.json
index 872fbfb..3d949d8 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "macaca-macos",
-  "version": "0.2.30",
+  "version": "0.2.31",
   "description": "Macaca MacOS driver",
   "keywords": [
     "macos",
diff --git a/src/driver/screen.ts b/src/driver/screen.ts
index f51e48e..2ca5a98 100644
--- a/src/driver/screen.ts
+++ b/src/driver/screen.ts
@@ -7,6 +7,17 @@ export default class ScreenDriver {
 
   hidpi = Helper.isHdpiDisplay();
 
+  /**
+   * 暴露ocr方法，支持通过重写使用三方能力替代
+   */
+  fileOcr(imgFile: string): {
+    rect: { left, top, height, width };
+    word: string;
+  }[] {
+    const resStr = shell.exec(`${Helper.getResourcePath()}/swift/ocr ${imgFile}`, { silent: true }).stdout;
+    return JSON.parse(resStr);
+  }
+
   /**
    * 使用系统ocr能力
    */
@@ -22,8 +33,7 @@ export default class ScreenDriver {
     }
     const ocrRes = [];
     for (let i = 0; i < count; i++) {
-      const resStr = shell.exec(`${Helper.getResourcePath()}/swift/ocr ${saveFile}`, { silent: true }).stdout;
-      ocrRes.push(...JSON.parse(resStr));
+      ocrRes.push(...this.fileOcr(saveFile));
     }
     return {
       imgFile: saveFile,
@@ -31,6 +41,22 @@ export default class ScreenDriver {
     };
   }
 
+  /**
+   * 检查文案存在
+   */
+  checkTextExist(opts: {
+    text: string;
+    picFile?: string; // 可直接指定图片
+    rectangle?: string; // 截图目标区域 通过矩形框 x,y,width,height 默认全屏
+  }): boolean {
+    const { text, picFile, rectangle } = opts;
+    const res = this.getTextsPosition({
+      texts: [ text ],
+      picFile, rectangle,
+    });
+    return !!res.length;
+  }
+
   /**
    * 获取文案在截图区域的位置
    * @param opts
@@ -39,15 +65,16 @@ export default class ScreenDriver {
     texts: string[]; // 目标文案
     index?: number; // 重复项指针
     contains?: boolean; // 包含即可
+    picFile?: string; // 可直接指定图片
     rectangle?: string; // 截图目标区域 通过矩形框 x,y,width,height 默认全屏
   }) {
     const {
-      texts, rectangle,
+      texts, rectangle, picFile,
       index = 0,
       contains = true,
     } = opts;
     // 获取文案位置
-    const { ocrRes } = this.screenOcr({ rectangle });
+    const { ocrRes } = this.screenOcr({ picFile, rectangle });
     const resultList = [];
     // 找多个目标
     for (const text of texts) {
diff --git a/test/macaca-macos.test.ts b/test/macaca-macos.test.ts
index cf8a989..3116502 100644
--- a/test/macaca-macos.test.ts
+++ b/test/macaca-macos.test.ts
@@ -33,6 +33,36 @@ describe('macaca-macos unit testing', function() {
     assert(res);
   });
 
+  it.skip('checkTextExist should be ok', async () => {
+    this.timeout(0);
+    const res = driver.checkTextExist({
+      text: '文案存在',
+    });
+    assert(res);
+  });
+
+  it.skip('overwrite should be ok', async () => {
+    this.timeout(0);
+    driver.fileOcr = (imgFile) => {
+      console.log(imgFile);
+      return [
+        {
+          word: '哈哈',
+          rect: {
+            left: 0,
+            top: 1,
+            height: 100,
+            width: 100,
+          },
+        },
+      ];
+    };
+    const res = driver.checkTextExist({
+      text: '哈哈',
+    });
+    assert(res);
+  });
+
   it.skip('mouse drag should be ok', async function() {
     this.timeout(0);
     await Helper.sleep(3E3);