diff --git a/drivers/net/hns3/hns3_fdir.c b/drivers/net/hns3/hns3_fdir.c
index e116d872fb..d043f5786d 100644
--- a/drivers/net/hns3/hns3_fdir.c
+++ b/drivers/net/hns3/hns3_fdir.c
@@ -1033,6 +1033,10 @@ int hns3_clear_all_fdir_filter(struct hns3_adapter *hns)
 	/* flush flow director */
 	rte_hash_reset(fdir_info->hash_handle);
 
+	memset(fdir_info->hash_map, 0,
+	       sizeof(struct hns3_fdir_rule_ele *) *
+	       fdir_info->fd_cfg.rule_num[HNS3_FD_STAGE_1]);
+
 	fdir_filter = TAILQ_FIRST(&fdir_info->fdir_list);
 	while (fdir_filter) {
 		TAILQ_REMOVE(&fdir_info->fdir_list, fdir_filter, entries);