diff --git a/src/main/java/com/sunyard/sge/database/SydApiBaseFunction.java b/src/main/java/com/sunyard/sge/database/SydApiBaseFunction.java
index 9a83e26..b822db7 100644
--- a/src/main/java/com/sunyard/sge/database/SydApiBaseFunction.java
+++ b/src/main/java/com/sunyard/sge/database/SydApiBaseFunction.java
@@ -124,6 +124,14 @@ public class SydApiBaseFunction implements SydApi {
         if (null == this.hsms || this.hsms.length < 1) {
             throw new SydApiException(-1);
         }
+
+        if (null == pcData) {
+            throw new SydApiException("输入内容为 null",19);
+        }
+        if ( pcData.length > 1024 ) {
+            throw new SydApiException("输入内容为空",19);
+        }
+
         SydApiException le = new SydApiException(-1);
 
         updateLastUseTime();
@@ -248,7 +256,15 @@ public class SydApiBaseFunction implements SydApi {
         if (null == this.hsms || this.hsms.length < 1) {
             throw new SydApiException(-1);
         }
-
+        if (Consts.ECB_ENC == iFlag) {
+            if ( pcData.length > 1024 ) {
+                throw new SydApiException("输入内容超长",19);
+            }
+        } else {
+            if ( pcData.length > 1040 ) {
+                throw new SydApiException("输入内容超长",19);
+            }
+        }
         updateLastUseTime();
         String keyIndex = String.format("%08d", iKeyIndex);
         SydApiException le = new SydApiException(-1);
@@ -318,13 +334,21 @@ public class SydApiBaseFunction implements SydApi {
         if (LogFactory.iLogLevel == 3) {
             log.debug("SYD_SM4_BatchData方法接收参数：iKeyIndex：{},pcData元素个数为：{},iFlag：{}", iKeyIndex, pcData.size(), iFlag);
         }
+
         if (iFlag == Consts.ECB_DEC) {
             for (byte[] pcdata : pcData) {
-                if (null == pcData || pcdata.length == 0) {
+                if (null == pcData || pcdata.length == 0 || pcdata.length > 1040) {
+                    throw new SydApiException(19);
+                }
+            }
+        } else {
+            for (byte[] pcdata : pcData) {
+                if (null == pcData || pcdata.length > 1024) {
                     throw new SydApiException(19);
                 }
             }
         }
+
         if (null == this.hsms || this.hsms.length < 1) {
             throw new SydApiException(-1);
         }
@@ -722,6 +746,11 @@ public class SydApiBaseFunction implements SydApi {
         if (LogFactory.iLogLevel == 3) {
             log.debug("SYD_SM4Mac_ShortData方法接收参数：iKeyIndex：{},pcData：{},iFlag：{}", iKeyIndex, Arrays.toString(pcData));
         }
+
+        if ( null == pcData || pcData.length > 1040 ) {
+            throw new SydApiException("输入内容超长",19);
+        }
+
         if (null == this.hsms || this.hsms.length < 1) {
             throw new SydApiException(-1);
         }
@@ -777,6 +806,11 @@ public class SydApiBaseFunction implements SydApi {
         if (LogFactory.iLogLevel == 3) {
             log.debug("SYD_SM4Mac_ShortData方法接收参数：{}", iKeyIndex, Arrays.toString(pcData), pcMac);
         }
+
+        if ( null == pcData ||  pcData.length > 1040 ) {
+            throw new SydApiException("输入内容超长",19);
+        }
+
         if (null == this.hsms || this.hsms.length < 1) {
             throw new SydApiException(-1);
         }