diff --git a/plugin/business/pangu-http/src/pangu_logger.cpp b/plugin/business/pangu-http/src/pangu_logger.cpp
index e303b1e..46185d0 100644
--- a/plugin/business/pangu-http/src/pangu_logger.cpp
+++ b/plugin/business/pangu-http/src/pangu_logger.cpp
@@ -81,14 +81,11 @@ error_out:
 	return NULL;
 }
 
-static int pangu_log_get_fqdn_cat(struct tfe_cmsg *cmsg, char *fqdn_cat_buff)
+static unsigned int pangu_log_get_fqdn_cat(struct tfe_cmsg *cmsg, unsigned int *category_id_val)
 {
 	int ret=0;
-    unsigned int i=0, category_id_num=0;
+    unsigned category_id_num=0;
 	uint16_t opt_out_size;
-	unsigned int category_id_val[TFE_SYMBOL_MAX]={0};
-
-	char *p = fqdn_cat_buff;
 
     ret = tfe_cmsg_get_value(cmsg, TFE_CMSG_FQDN_CAT_ID_NUM, (unsigned char *)&category_id_num, sizeof(category_id_num), &opt_out_size);
     if (ret != 0 || category_id_num == 0)
@@ -101,12 +98,7 @@ static int pangu_log_get_fqdn_cat(struct tfe_cmsg *cmsg, char *fqdn_cat_buff)
         return -1;
     }
 
-    for (i = 0; i < category_id_num && i < 8; i++)
-    {
-    	p += snprintf(p, sizeof(fqdn_cat_buff) - (p - fqdn_cat_buff), "%s%d",  i>0 ? "," : "", category_id_val[i]);
-	}
-
-	return 0;
+	return category_id_num > 8 ? 8 : category_id_num;
 }
 
 int pangu_send_log(struct pangu_logger* handle, const struct pangu_log* log_msg)
@@ -153,9 +145,8 @@ int pangu_send_log(struct pangu_logger* handle, const struct pangu_log* log_msg)
 	cJSON_AddStringToObject(common_obj, "http_version", app_proto[http->major_version]);
 	cJSON_AddStringToObject(common_obj, "common_schema_type", "HTTP");
 
-	unsigned int common_direction=0;
-	char category_id_val[TFE_SYMBOL_MAX];
-	char opt_val[24] = { 0 }; uint16_t opt_out_size;
+	unsigned int common_direction=0, category_id_val[8]={0};
+	char opt_val[24]={0}; uint16_t opt_out_size;
 	struct tfe_cmsg * cmsg = tfe_stream_get0_cmsg(log_msg->stream);
 	if (cmsg!=NULL)
 	{
@@ -170,9 +161,9 @@ int pangu_send_log(struct pangu_logger* handle, const struct pangu_log* log_msg)
 			cJSON_AddNumberToObject(common_obj, "common_direction", common_direction);	//0：域内->域外，1：域外->域内，描述的是CLIENT_IP信息
         }
 		ret = pangu_log_get_fqdn_cat(cmsg, category_id_val);
-		if (ret==0)
+		if (ret>0)
 		{
-			cJSON_AddStringToObject(common_obj, "common_service_category", category_id_val);
+			cJSON_AddItemToObject(common_obj, "common_service_category", cJSON_CreateIntArray((const int*)category_id_val, ret));
 		}
 	}