diff --git a/services/implementation/include/dependency/hichain/hichain_connector.h b/services/implementation/include/dependency/hichain/hichain_connector.h
index d3d9213f..734d580b 100644
--- a/services/implementation/include/dependency/hichain/hichain_connector.h
+++ b/services/implementation/include/dependency/hichain/hichain_connector.h
@@ -202,6 +202,8 @@ private:
     int32_t GetStrFieldByType(const std::string &reqJsonStr, const std::string &outField, int32_t type);
     int32_t GetNumsFieldByType(const std::string &reqJsonStr, int32_t &outField, int32_t type);
     int32_t GetGroupId(const std::string &userId, const int32_t groupType, std::string &groupId);
+    int32_t ParseRemoteCredential(const int32_t groupType, const std::string &userId,
+    const nlohmann::json &jsonDeviceList, std::string &params, int32_t &osAccountUserId);
 private:
     const DeviceGroupManager *deviceGroupManager_ = nullptr;
     DeviceAuthCallback deviceAuthCallback_;
diff --git a/services/implementation/src/dependency/hichain/hichain_connector.cpp b/services/implementation/src/dependency/hichain/hichain_connector.cpp
index 1a68f58b..29d2a9be 100644
--- a/services/implementation/src/dependency/hichain/hichain_connector.cpp
+++ b/services/implementation/src/dependency/hichain/hichain_connector.cpp
@@ -775,13 +775,9 @@ int32_t HiChainConnector::GetGroupId(const std::string &userId, const int32_t gr
     return ERR_DM_FAILED;
 }
 
-int32_t HiChainConnector::addMultiMembers(const int32_t groupType, const std::string &userId,
-    const nlohmann::json &jsonDeviceList)
+int32_t HiChainConnector::ParseRemoteCredential(const int32_t groupType, const std::string &userId,
+    const nlohmann::json &jsonDeviceList, std::string &params, int32_t &osAccountUserId)
 {
-    if (deviceGroupManager_ == nullptr) {
-        LOGE("HiChainConnector::deviceGroupManager_ is nullptr.");
-        return ERR_DM_INPUT_PARAMETER_EMPTY;
-    }
     if (userId.empty() || !jsonDeviceList.contains(FIELD_DEVICE_LIST)) {
         LOGE("userId or deviceList is empty");
         return ERR_DM_INPUT_PARAMETER_EMPTY;
@@ -791,19 +787,35 @@ int32_t HiChainConnector::addMultiMembers(const int32_t groupType, const std::st
         LOGE("failed to get groupid");
         return ERR_DM_FAILED;
     }
-    std::string appId = DM_PKG_NAME;
     nlohmann::json jsonObj;
     jsonObj[FIELD_GROUP_ID] = groupId;
     jsonObj[FIELD_GROUP_TYPE] = groupType;
     jsonObj[FIELD_DEVICE_LIST] = jsonDeviceList[FIELD_DEVICE_LIST];
-    std::string addParams = jsonObj.dump();
-    int32_t osAccountUserId = MultipleUserConnector::GetCurrentAccountUserID();
+    params = jsonObj.dump();
+    osAccountUserId = MultipleUserConnector::GetCurrentAccountUserID();
     if (osAccountUserId < 0) {
         LOGE("get current process account user id failed");
         return ERR_DM_FAILED;
     }
+    return DM_OK;
+}
+
+int32_t HiChainConnector::addMultiMembers(const int32_t groupType, const std::string &userId,
+    const nlohmann::json &jsonDeviceList)
+{
+    if (deviceGroupManager_ == nullptr) {
+        LOGE("HiChainConnector::deviceGroupManager_ is nullptr.");
+        return ERR_DM_INPUT_PARAMETER_EMPTY;
+    }
+    std::string addParams;
+    int32_t osAccountUserId = 0;
+    if (ParseRemoteCredential(groupType, userId, jsonDeviceList, addParams, osAccountUserId) != DM_OK) {
+        LOGE("addMultiMembers ParseRemoteCredential failed!");
+        return ERR_DM_FAILED;
+    }
+
     int32_t ret = deviceGroupManager_->addMultiMembersToGroup(osAccountUserId,
-        appId.c_str(), addParams.c_str());
+        DM_PKG_NAME.c_str(), addParams.c_str());
     if (ret!= DM_OK) {
         LOGE("HiChainConnector::addMultiMemberstoGroup failure! ret=%d", ret);
         return ret;
@@ -818,28 +830,16 @@ int32_t HiChainConnector::deleteMultiMembers(const int32_t groupType, const std:
         LOGE("HiChainConnector::deviceGroupManager_ is nullptr.");
         return ERR_DM_INPUT_PARAMETER_EMPTY;
     }
-    if (userId.empty() || !jsonDeviceList.contains(FIELD_DEVICE_LIST)) {
-        LOGE("jsonDeviceList userId or deleteInfo string is empty");
-        return ERR_DM_INPUT_PARAMETER_EMPTY;
-    }
-    std::string groupId;
-    if (GetGroupId(userId, groupType, groupId) != DM_OK) {
-        LOGE("failed to get groupid");
-        return ERR_DM_FAILED;
-    }
-    std::string appId = DM_PKG_NAME;
-    nlohmann::json jsonObj;
-    jsonObj[FIELD_GROUP_ID] = groupId;
-    jsonObj[FIELD_GROUP_TYPE] = groupType;
-    jsonObj[FIELD_DEVICE_LIST] = jsonDeviceList[FIELD_DEVICE_LIST];
-    std::string deleteParams = jsonObj.dump();
-    int32_t osAccountUserId = MultipleUserConnector::GetCurrentAccountUserID();
-    if (osAccountUserId < 0) {
-        LOGE("get current process account user id failed");
+
+    std::string deleteParams;
+    int32_t osAccountUserId = 0;
+    if (ParseRemoteCredential(groupType, userId, jsonDeviceList, deleteParams, osAccountUserId) != DM_OK) {
+        LOGE("deleteMultiMembers ParseRemoteCredential failed!");
         return ERR_DM_FAILED;
     }
+
     int32_t ret = deviceGroupManager_->delMultiMembersFromGroup(osAccountUserId,
-        appId.c_str(), deleteParams.c_str());
+        DM_PKG_NAME.c_str(), deleteParams.c_str());
     if (ret != DM_OK) {
         LOGE("HiChainConnector::deleteMultiMembers failure!, ret=%d", ret);
         return ret;