diff --git a/storage/storagefileiojstest/src/main/js/default/test/FileIOStream.test.js b/storage/storagefileiojstest/src/main/js/default/test/FileIOStream.test.js
index 7d8a3ca2f7ca85f31d2fbc353656dcde14b55023..8d7956715704029d28009d01cd815f7b87ee9b40 100644
--- a/storage/storagefileiojstest/src/main/js/default/test/FileIOStream.test.js
+++ b/storage/storagefileiojstest/src/main/js/default/test/FileIOStream.test.js
@@ -1390,19 +1390,18 @@ describe('fileIOTestStream', function () {
     let fpath = await nextFileName('fileio_test_stream_read_sync_005');
     let text = '0123456789abcdefg';
     expect(prepareFile(fpath, text)).assertTrue();
+    let ss = fileio.createStreamSync(fpath, 'r+');
+    expect(ss !== null).assertTrue();
     try {
-      var ss = fileio.createStreamSync(fpath, 'r+');
-      expect(ss !== null).assertTrue();
-      let len = ss.readSync(new ArrayBuffer(4096), {
+      ss.readSync(new ArrayBuffer(4096), {
         position: -1
       });
-      expect(len == text.length).assertTrue();
-      ss.closeSync();
-      fileio.unlinkSync(fpath);
     } 
     catch (e) {
-      console.log('---fileio_test_stream_read_sync_005 has failed for ' + e);
-      expect(null).assertFail();
+      console.info('fileio_test_stream_read_sync_005 has failed for ' + e);
+      expect(e.message == "option.position shall be positive number").assertTrue();
+      ss.closeSync();
+      fileio.unlinkSync(fpath);
     }
   });
 
diff --git a/storage/storagefileiojstest/src/main/js/default/test/module_fileio/class_stream/read.test.js b/storage/storagefileiojstest/src/main/js/default/test/module_fileio/class_stream/read.test.js
index 61c438d4b2be30e441654d2b271ca3a21370dca7..5745b7b1e73794d4bb2667fffb935a0d458afd66 100644
--- a/storage/storagefileiojstest/src/main/js/default/test/module_fileio/class_stream/read.test.js
+++ b/storage/storagefileiojstest/src/main/js/default/test/module_fileio/class_stream/read.test.js
@@ -123,6 +123,7 @@ describe('fileio_stream_read', function () {
       expect(ss !== null).assertTrue();
       let readout = await ss.read(new ArrayBuffer(4096), {offset: 4096});
       expect(readout.bytesRead == 0).assertTrue();
+      expect(readout.offset == 4096).assertTrue();
       ss.closeSync();
       fileio.unlinkSync(fpath);
       done();
@@ -151,10 +152,15 @@ describe('fileio_stream_read', function () {
       expect(ss !== null).assertTrue();
       let options = {
         offset: 1,
-        position:5
+        position:6
       }
       let readout = await ss.read(new ArrayBuffer(4096),options);
-      expect(readout.bytesRead == FILE_CONTENT.length).assertTrue();
+      expect(readout.bytesRead == FILE_CONTENT.length-6).assertTrue();
+      expect(readout.offset == 1).assertTrue();
+      let start = readout.offset;
+      let end = readout.offset+readout.bytesRead;
+      let result = String.fromCharCode.apply(null, new Uint8Array(readout.buffer.slice(start,end)));
+      expect(result== "world").assertTrue();
       ss.closeSync();
       fileio.unlinkSync(fpath);
       done();
@@ -267,7 +273,7 @@ describe('fileio_stream_read', function () {
   /**
    * @tc.number SUB_DF_FILEIO_STREAM_READASYNC_0900
    * @tc.name fileio_test_stream_read_async_009
-   * @tc.desc Test read() interface, When the length is negative.
+   * @tc.desc Test read() interface, When the length is negative,equivalent to omitting the parameter.
    * @tc.size MEDIUM
    * @tc.type Function
    * @tc.level Level 0
@@ -279,15 +285,13 @@ describe('fileio_stream_read', function () {
     let ss = fileio.createStreamSync(fpath, 'r+');
     expect(ss !== null).assertTrue();
     try {
-      let readout = await ss.read(new ArrayBuffer(4096), {length: -1});
-      console.info("====>"+readout.bytesRead);
-      done();
-    } catch (err) {
-      console.info('fileio_test_stream_read_async_009 has failed for ' + err);
-      expect(err.message == "Failed GetReadArg").assertTrue();
+      let readout = await ss.read(new ArrayBuffer(16), {offset:13, length: -1});
+      expect(readout.bytesRead == 3).assertTrue();
       ss.closeSync();
       fileio.unlinkSync(fpath);
       done();
+    } catch (err) {
+      console.info('fileio_test_stream_read_async_009 has failed for ' + err);
     }
   });
 
@@ -340,4 +344,54 @@ describe('fileio_stream_read', function () {
         console.info('fileio_test_stream_read_async_011 has failed for ' + err);
       }
     });
+
+     /**
+   * @tc.number SUB_DF_FILEIO_STREAM_READASYNC_1200
+   * @tc.name fileio_test_stream_read_async_012
+   * @tc.desc Test read() interface, When the position is negative.
+   * @tc.size MEDIUM
+   * @tc.type Function
+   * @tc.level Level 0
+   * @tc.require
+   */
+   it('fileio_test_stream_read_async_012', 0, async function (done) {
+    let fpath = await nextFileName('fileio_test_stream_read_async_012');
+    expect(prepareFile(fpath, FILE_CONTENT)).assertTrue();
+    let ss = fileio.createStreamSync(fpath, 'r+');
+    expect(ss !== null).assertTrue();
+    try {
+      await ss.read(new ArrayBuffer(4096), {position:-1});
+    } catch (err) {
+      console.info('fileio_test_stream_read_async_012 has failed for ' + err);
+      expect(err.message == "Failed GetReadArg").assertTrue();
+      ss.closeSync();
+      fileio.unlinkSync(fpath);
+      done();
+    }
+  });
+
+   /**
+   * @tc.number SUB_DF_FILEIO_STREAM_READASYNC_1300
+   * @tc.name fileio_test_stream_read_async_013
+   * @tc.desc Test read() interface,When the parameter type is wrong.
+   * @tc.size MEDIUM
+   * @tc.type Function
+   * @tc.level Level 0
+   * @tc.require
+   */
+    it('fileio_test_stream_read_async_013', 0, async function (done) {
+      let fpath = await nextFileName('fileio_test_stream_read_async_013');
+      expect(prepareFile(fpath, FILE_CONTENT)).assertTrue();
+      let ss = fileio.createStreamSync(fpath, 'r+');
+      expect(ss !== null).assertTrue();
+      try {
+        await ss.read("");
+      } catch (err) {
+        console.info('fileio_test_stream_read_async_013 has failed for ' + err);
+        expect(err.message == "Failed GetReadArg").assertTrue();
+        ss.closeSync();
+        fileio.unlinkSync(fpath);
+        done();
+      }
+    });
 });
diff --git a/storage/storagefileiojstest/src/main/js/default/test/module_fileio/class_stream/write.test.js b/storage/storagefileiojstest/src/main/js/default/test/module_fileio/class_stream/write.test.js
index be098244e01596cb7cf0c7a80004f80bb9c9c6f5..f375f3b4bb44169ef0eb1e77ca78dc30b71e1c67 100644
--- a/storage/storagefileiojstest/src/main/js/default/test/module_fileio/class_stream/write.test.js
+++ b/storage/storagefileiojstest/src/main/js/default/test/module_fileio/class_stream/write.test.js
@@ -113,7 +113,7 @@ describe('fileio_stream_write', function () {
   /**
    * @tc.number SUB_DF_FILEIO_STREAM_WRITEASYNC_0300
    * @tc.name fileio_test_stream_write_async_003
-   * @tc.desc Test write() interface,When the length is 1.
+   * @tc.desc Test write() interface,When the offset is 1 and position is 5.
    * @tc.size MEDIUM
    * @tc.type Function
    * @tc.level Level 0
@@ -126,9 +126,14 @@ describe('fileio_stream_write', function () {
     try {
       let ss = fileio.createStreamSync(fpath, 'r+');
       expect(ss !== null).assertTrue();
-      let content = "hello, world";
-      let bytesWritten = await ss.write(content, { length: 1, encoding: 'utf-8' });
-      expect(bytesWritten == 1).assertTrue();
+      let content = "test";
+      let bytesWritten = await ss.write(content, {offset:1, position:5, encoding: 'utf-8' });
+      expect(bytesWritten == content.length-1).assertTrue();
+      let readOut = await ss.read(new ArrayBuffer(4096), {offset:0,position: 0});
+      let start = readOut.offset;
+      let end = readOut.offset+readOut.bytesRead;
+      let result = String.fromCharCode.apply(null, new Uint8Array(readOut.buffer.slice(start,end)));
+      expect(result == "helloestrld").assertTrue();
       fileio.unlinkSync(fpath);
       ss.closeSync();
       done();
@@ -330,7 +335,7 @@ describe('fileio_stream_write', function () {
   /**
    * @tc.number SUB_DF_FILEIO_STREAM_WRITEASYNC_1100
    * @tc.name fileio_test_stream_write_async_011
-   * @tc.desc Test write() interface,When the length is negative.
+   * @tc.desc Test write() interface,When the length is negative,equivalent to omitting the parameter.
    * @tc.size MEDIUM
    * @tc.type Function
    * @tc.level Level 0
@@ -343,15 +348,13 @@ describe('fileio_stream_write', function () {
     expect(ss !== null).assertTrue();
     try {
       let content = "hello, world";
-      let number = await ss.write(content, {length:-1});
-      console.info("====>"+number);
-      done();
-    } catch (err) {
-      console.info('fileio_test_stream_write_async_011 has failed for ' + err);
-      expect(err.message == "Invalid option.length, positive integer is desired").assertTrue();
+      let number = await ss.write(content, {offset:1 ,length:-1});
+      expect(number == content.length-1).assertTrue();
       fileio.unlinkSync(fpath);
       ss.closeSync();
       done();
+    } catch (err) {
+      console.info('fileio_test_stream_write_async_011 has failed for ' + err);
     }
   });
 
@@ -432,4 +435,30 @@ describe('fileio_stream_write', function () {
       done();
     }
   });
+
+  /**
+   * @tc.number SUB_DF_FILEIO_STREAM_WRITEASYNC_1500
+   * @tc.name fileio_test_stream_write_async_015
+   * @tc.desc Test write() interface,When the position is negative.
+   * @tc.size MEDIUM
+   * @tc.type Function
+   * @tc.level Level 0
+   * @tc.require
+   */
+   it('fileio_test_stream_write_async_015', 0, async function (done) {
+    let fpath = await nextFileName('fileio_test_stream_write_async_015');
+    expect(prepareFile(fpath, FILE_CONTENT)).assertTrue();
+    let ss = fileio.createStreamSync(fpath, 'r+');
+    expect(ss !== null).assertTrue();
+    try {
+      let content = "hello, world";
+      await ss.write(content, {position:-1});
+    } catch (err) {
+      console.info('fileio_test_stream_write_async_015 has failed for ' + err);
+      expect(err.message == "option.position shall be positive number").assertTrue();
+      fileio.unlinkSync(fpath);
+      ss.closeSync();
+      done();
+    }
+  });
 });