diff --git a/src/main/java/com/sunyard/sge/database/SydApi4Database.java b/src/main/java/com/sunyard/sge/database/SydApi4Database.java
index d07c85f..7694c76 100644
--- a/src/main/java/com/sunyard/sge/database/SydApi4Database.java
+++ b/src/main/java/com/sunyard/sge/database/SydApi4Database.java
@@ -1,8 +1,6 @@
 package com.sunyard.sge.database;
 
 import com.sunyard.sge.database.pool.HsmLinkInfo;
-import com.sunyard.sge.log.LogFactory;
-import com.sunyard.sge.pool.CommWorker;
 import racal.sunyard.main.SydApi4j;
 
 import java.util.ArrayList;
@@ -61,13 +59,14 @@ public class SydApi4Database extends SydApiBaseFunction {
 
                 curDataGroup = new ArrayList<>();
                 curKeyGroup = new ArrayList<>();
+                totalLen = 0;
             }
 
 
             curDataGroup.add(data);
             curKeyGroup.add(iKeyIndex[i]);
 
-            totalLen = data.length;
+            totalLen += data.length;
 
         }
 
@@ -120,12 +119,13 @@ public class SydApi4Database extends SydApiBaseFunction {
 
                 curDataGroup = new ArrayList<>();
                 curKeyGroup = new ArrayList<>();
+                totalLen = 0;
             }
 
             curDataGroup.add(data);
             curKeyGroup.add(iKeyIndex[i]);
 
-            totalLen = data.length;
+            totalLen += data.length;
         }
 
         dataGroups.add(curDataGroup);
@@ -182,13 +182,14 @@ public class SydApi4Database extends SydApiBaseFunction {
                 curDataGroup = new ArrayList<>();
                 curKeyGroup = new ArrayList<>();
                 curMacGroup = new ArrayList<>();
+                totalLen = 0;
             }
 
 
             curDataGroup.add(data);
             curKeyGroup.add(iKeyIndex[i]);
             curMacGroup.add(pcMac[i]);
-            totalLen = data.length;
+            totalLen += data.length;
         }
 
         dataGroups.add(curDataGroup);
diff --git a/src/main/java/com/sunyard/sge/database/SydApiLongLinkWrap.java b/src/main/java/com/sunyard/sge/database/SydApiLongLinkWrap.java
index b5d7f90..5e64715 100644
--- a/src/main/java/com/sunyard/sge/database/SydApiLongLinkWrap.java
+++ b/src/main/java/com/sunyard/sge/database/SydApiLongLinkWrap.java
@@ -183,7 +183,6 @@ public class SydApiLongLinkWrap implements SydApi {
         if ( 0 == iKeyIndex.length  ) {
             return new ArrayList<>();
         }
-
         // 将数据进行分组，防止超长。
         List<List<byte[]>> dataGroups = new ArrayList<>();
         List<List<Integer>> keyGroups = new ArrayList<>();
@@ -206,13 +205,14 @@ public class SydApiLongLinkWrap implements SydApi {
 
                 curDataGroup = new ArrayList<>();
                 curKeyGroup = new ArrayList<>();
+                totalLen = 0;
             }
 
 
             curDataGroup.add(data);
             curKeyGroup.add(iKeyIndex[i]);
 
-            totalLen = data.length;
+            totalLen += data.length;
 
         }
 
@@ -259,7 +259,6 @@ public class SydApiLongLinkWrap implements SydApi {
         if ( 0 == iKeyIndex.length  ) {
             return new String[0];
         }
-
         // 将数据进行分组，防止超长。
         List<List<byte[]>> dataGroups = new ArrayList<>();
         List<List<Integer>> keyGroups = new ArrayList<>();
@@ -282,12 +281,13 @@ public class SydApiLongLinkWrap implements SydApi {
 
                 curDataGroup = new ArrayList<>();
                 curKeyGroup = new ArrayList<>();
+                totalLen = 0;
             }
 
             curDataGroup.add(data);
             curKeyGroup.add(iKeyIndex[i]);
 
-            totalLen = data.length;
+            totalLen += data.length;
         }
 
         dataGroups.add(curDataGroup);
@@ -323,7 +323,6 @@ public class SydApiLongLinkWrap implements SydApi {
 
     @Override
     public boolean[] SYD_SM4Mac_BatchData(int[] iKeyIndex, List<byte[]> pcData, String[] pcMac) {
-
         if ( null == iKeyIndex || null == pcData ) {
             throw new IllegalArgumentException("批量输入数据为 null");
         }
@@ -336,7 +335,6 @@ public class SydApiLongLinkWrap implements SydApi {
             return new boolean[0];
         }
 
-
         // 将数据进行分组，防止超长。
         List<List<byte[]>> dataGroups = new ArrayList<>();
         List<List<Integer>> keyGroups = new ArrayList<>();
@@ -364,13 +362,14 @@ public class SydApiLongLinkWrap implements SydApi {
                 curDataGroup = new ArrayList<>();
                 curKeyGroup = new ArrayList<>();
                 curMacGroup = new ArrayList<>();
+                totalLen = 0;
             }
 
 
             curDataGroup.add(data);
             curKeyGroup.add(iKeyIndex[i]);
             curMacGroup.add(pcMac[i]);
-            totalLen = data.length;
+            totalLen += data.length;
         }
 
         dataGroups.add(curDataGroup);
diff --git a/src/test/java/test/BatchDataTest.java b/src/test/java/test/BatchDataTest.java
index 0ef0df9..b161896 100644
--- a/src/test/java/test/BatchDataTest.java
+++ b/src/test/java/test/BatchDataTest.java
@@ -63,8 +63,8 @@ public class BatchDataTest {
         SydApiBuilder builder = new SydApiBuilder(
                 new String[]{"192.168.1.129"},
                 new int[]{8889},
-                10,
-                15
+                20,
+                30
 
         );
         api = builder.build();
@@ -104,6 +104,8 @@ public class BatchDataTest {
         }
     }
 
+
+
     @Test
     public void batchSM4Case2() {
         // 测试数据
@@ -117,6 +119,34 @@ public class BatchDataTest {
         }
     }
 
+    @Test
+    public void batchSM4Case3() {
+        // 密钥索引
+        int[] keyIdx = new int[]{0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2}; // 12 组
+        // 测试数据
+        List<byte[]> data = new ArrayList<>();
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+
+        List<byte[]> encData = api.SYD_SM4_BatchData(keyIdx, data, Consts.ECB_ENC);
+        List<byte[]> orgData = api.SYD_SM4_BatchData(keyIdx, encData, Consts.ECB_DEC);
+
+        for (int i = 0; i < data.size(); i++) {
+            Assert.assertArrayEquals(orgData.get(i), data.get(i));
+        }
+    }
+
+
     @Test
     public void batchSM4CaseZero() {
         // 测试数据
@@ -157,6 +187,60 @@ public class BatchDataTest {
         }
     }
 
+    @Test
+    public void batchMACDataCase2() {
+        // 密钥索引
+        int[] keyIdx = new int[]{0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2}; // 12 组
+        // 测试数据
+        List<byte[]> data = new ArrayList<>();
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+
+        String[] macs = api.SYD_SM4Mac_BatchData(keyIdx, data);
+        boolean[] checks = api.SYD_SM4Mac_BatchData(keyIdx, data, macs);
+
+        for (int i = 0; i < data.size(); i++) {
+            Assert.assertTrue(checks[i]);
+        }
+    }
+
+    @Test
+    public void batchMACData3() {
+        // 密钥索引
+        int[] keyIdx = new int[]{0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2}; // 12 组
+        // 测试数据
+        List<byte[]> data = new ArrayList<>();
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+        data.add(new byte[1024]);
+
+        String[] macs = api.SYD_SM4Mac_BatchData(keyIdx, data);
+        boolean[] checks = api.SYD_SM4Mac_BatchData(keyIdx, data, macs);
+
+        for (int i = 0; i < data.size(); i++) {
+            Assert.assertTrue(checks[i]);
+        }
+    }
+
     @Test
     public void batchMACData() {
         // 测试数据
@@ -170,6 +254,7 @@ public class BatchDataTest {
         }
     }
 
+
     @Test
     public void batchMACDataZero() {
         // 测试数据