diff --git a/interfaces/innerkits/nativetoken/include/nativetoken.h b/interfaces/innerkits/nativetoken/include/nativetoken.h
index e67f116be1c9b0aa4e3c66e4a6e10d69b855e908..dc71d3888e53901c094f0b34747fc38c60d15294 100644
--- a/interfaces/innerkits/nativetoken/include/nativetoken.h
+++ b/interfaces/innerkits/nativetoken/include/nativetoken.h
@@ -95,7 +95,7 @@ typedef struct TokenList {
 } NativeTokenList;
 
 typedef struct StrArrayAttribute {
-    uint32_t maxStrNum;
+    int32_t maxStrNum;
     uint32_t maxStrLen;
     const char *strKey;
 } StrArrayAttr;
diff --git a/interfaces/innerkits/nativetoken/src/nativetoken.c b/interfaces/innerkits/nativetoken/src/nativetoken.c
index 6d70d2a8853507ca4ba439c4f2a6550530d48fc7..d426d9d4b2e18b826625464d1d22a2647d530c67 100644
--- a/interfaces/innerkits/nativetoken/src/nativetoken.c
+++ b/interfaces/innerkits/nativetoken/src/nativetoken.c
@@ -80,7 +80,7 @@ int32_t GetFileBuff(const char *cfg, char **retBuff)
 static void StrAttrSet(StrArrayAttr *attr, uint32_t maxStrLen, int32_t maxStrNum, const char *strKey)
 {
     attr->maxStrLen = maxStrLen;
-    attr->maxStrNum = maxStrLen;
+    attr->maxStrNum = maxStrNum;
     attr->strKey = strKey;
 }
 
diff --git a/interfaces/innerkits/nativetoken/src/nativetoken_json_oper.c b/interfaces/innerkits/nativetoken/src/nativetoken_json_oper.c
index 802ceaee667fbe3f0446888ffe2d5e9a1013b637..7921b36cea88008651fa5a11f3d7f25ea0021c61 100644
--- a/interfaces/innerkits/nativetoken/src/nativetoken_json_oper.c
+++ b/interfaces/innerkits/nativetoken/src/nativetoken_json_oper.c
@@ -76,14 +76,14 @@ uint32_t GetAplFromJson(cJSON *cjsonItem, NativeTokenList *tokenNode)
 uint32_t GetInfoArrFromJson(cJSON *cjsonItem, char *strArr[], int32_t *strNum, StrArrayAttr *attr)
 {
     cJSON *strArrJson = cJSON_GetObjectItem(cjsonItem, attr->strKey);
-    uint32_t size = (uint32_t)cJSON_GetArraySize(strArrJson);
+    int32_t size = cJSON_GetArraySize(strArrJson);
     if (size > attr->maxStrNum) {
         AT_LOG_ERROR("[ATLIB-%s]:size = %d is invalid.", __func__, size);
         return ATRET_FAILED;
     }
     *strNum = size;
 
-    for (uint32_t i = 0; i < size; i++) {
+    for (int32_t i = 0; i < size; i++) {
         cJSON *item = cJSON_GetArrayItem(strArrJson, i);
         if ((item == NULL) || (!cJSON_IsString(item)) || (item->valuestring == NULL)) {
             AT_LOG_ERROR("[ATLIB-%s]:cJSON_GetArrayItem failed.", __func__);
diff --git a/interfaces/innerkits/nativetoken/test/unittest/src/nativetoken_kit_test.cpp b/interfaces/innerkits/nativetoken/test/unittest/src/nativetoken_kit_test.cpp
index df7db9eca56958498f610d83baf8385de6a1a22e..f13cf2b45be685c28eabb7b52a3f4ae35f4b2ecf 100644
--- a/interfaces/innerkits/nativetoken/test/unittest/src/nativetoken_kit_test.cpp
+++ b/interfaces/innerkits/nativetoken/test/unittest/src/nativetoken_kit_test.cpp
@@ -70,6 +70,7 @@ int32_t Start(const char *processName)
     tokenId = GetAccessTokenId(&infoInstance);
     delete[] dcaps;
     delete[] perms;
+    delete[] acls;
     return tokenId;
 }