diff --git a/components/bt/host/bluedroid/btc/profile/esp/blufi/blufi_prf.c b/components/bt/host/bluedroid/btc/profile/esp/blufi/blufi_prf.c
index dec4caceae..6150c651cd 100644
--- a/components/bt/host/bluedroid/btc/profile/esp/blufi/blufi_prf.c
+++ b/components/bt/host/bluedroid/btc/profile/esp/blufi/blufi_prf.c
@@ -537,6 +537,13 @@ void btc_blufi_send_encap(uint8_t type, uint8_t *data, int total_data_len)
         }
 
 retry:
+        if (blufi_env.is_connected == false) {
+            BTC_TRACE_WARNING("%s ble connection is broken\n", __func__);
+            osi_free(hdr);
+            hdr =  NULL;
+            return;
+        }
+
         if (esp_ble_get_cur_sendable_packets_num(BTC_GATT_GET_CONN_ID(blufi_env.conn_id)) > 0) {
             btc_blufi_send_notify((uint8_t *)hdr,
                 ((hdr->fc & BLUFI_FC_CHECK) ?