diff --git a/plugin/business/pangu-http/src/pangu_http.cpp b/plugin/business/pangu-http/src/pangu_http.cpp
index ec744ae..4066d77 100644
--- a/plugin/business/pangu-http/src/pangu_http.cpp
+++ b/plugin/business/pangu-http/src/pangu_http.cpp
@@ -1041,6 +1041,7 @@ struct pangu_http_ctx
 	struct policy_action_param *param;
 	struct evbuffer* log_req_body, *log_resp_body;
 
+	size_t inject_sz;
 	struct replace_ctx * rep_ctx;
 	struct insert_ctx * ins_ctx;
 
@@ -1696,6 +1697,7 @@ static void http_hijack(const struct tfe_http_session * session, enum tfe_http_e
 			ctx->action = PG_ACTION_NONE;
 			return;
 		}
+		ctx->inject_sz = hijack_size;
 
 		char cont_len_str[16];
 
@@ -1748,6 +1750,7 @@ static int format_insert_rule(int profile_id, struct insert_rule *rule)
 	rule->script = tfe_strdup(insert_profile->profile_msg);
 	rule->type = tfe_strdup(insert_profile->profile_type);
 	rule->position = tfe_strdup(insert_profile->profile_position);
+	rule->inject_sz = insert_profile->msg_len;
 
 	ma_profile_table_free(insert_profile);
 	insert_profile = NULL;
@@ -1787,6 +1790,7 @@ static void http_insert(const struct tfe_stream * stream, const struct tfe_http_
 				ctx->action = PG_ACTION_NONE;
 				return;
 			}
+			ctx->inject_sz = ins_ctx->rule->inject_sz;
 		}
 		else
 		{
@@ -2474,7 +2478,7 @@ void pangu_on_http_end(const struct tfe_stream * stream,
 		}
 	}
 	struct pangu_log log_msg =  {.stream=stream, .http=session, .result=ctx->enforce_rules, .result_num=ctx->n_enforce,
-								.req_body= ctx->log_req_body, .resp_body=ctx->log_resp_body, .action=0};
+								.req_body=ctx->log_req_body, .resp_body=ctx->log_resp_body, .action=0, .inject_sz=ctx->inject_sz};
 
 	if(ctx->action == PG_ACTION_MANIPULATE)
 	{
diff --git a/plugin/business/pangu-http/src/pangu_logger.cpp b/plugin/business/pangu-http/src/pangu_logger.cpp
index df36e55..3a66b19 100644
--- a/plugin/business/pangu-http/src/pangu_logger.cpp
+++ b/plugin/business/pangu-http/src/pangu_logger.cpp
@@ -303,6 +303,7 @@ int pangu_send_log(struct pangu_logger* handle, const struct pangu_log* log_msg)
 		if(log_msg->result[i].action == LG_ACTION_MANIPULATE)
 		{
 			cJSON_AddStringToObject(per_hit_obj, "common_sub_action", manipulate_action_map[log_msg->action]);
+			cJSON_AddNumberToObject(per_hit_obj, "http_action_file_sz", log_msg->inject_sz);
 		}
 		else
 		{
diff --git a/plugin/business/pangu-http/src/pangu_logger.h b/plugin/business/pangu-http/src/pangu_logger.h
index 2da32fb..91ca8cb 100644
--- a/plugin/business/pangu-http/src/pangu_logger.h
+++ b/plugin/business/pangu-http/src/pangu_logger.h
@@ -12,6 +12,7 @@ struct pangu_log
     size_t result_num;
 	struct evbuffer* req_body, *resp_body;
     unsigned char action;
+    size_t inject_sz;
 };
 struct pangu_logger;
 struct pangu_logger*  pangu_log_handle_create(const char* profile, const char* section, void* local_logger);
diff --git a/plugin/business/pangu-http/src/pattern_replace.h b/plugin/business/pangu-http/src/pattern_replace.h
index 4160b5c..2e85b67 100644
--- a/plugin/business/pangu-http/src/pattern_replace.h
+++ b/plugin/business/pangu-http/src/pattern_replace.h
@@ -23,6 +23,7 @@ struct replace_rule
 
 struct insert_rule
 {
+    int inject_sz;
     char * script;
     char * type;
     char * position;