diff --git a/components/bt/host/bluedroid/bta/dm/bta_dm_act.c b/components/bt/host/bluedroid/bta/dm/bta_dm_act.c
index d51fa224687..9e936409b66 100644
--- a/components/bt/host/bluedroid/bta/dm/bta_dm_act.c
+++ b/components/bt/host/bluedroid/bta/dm/bta_dm_act.c
@@ -5102,7 +5102,7 @@ void bta_dm_ble_update_conn_params (tBTA_DM_MSG *p_data)
 *******************************************************************************/
 void bta_dm_ble_disconnect (tBTA_DM_MSG *p_data)
 {
-    L2CA_BleDisconnect(p_data->ble_disconnect.remote_bda);
+    L2CA_RemoveFixedChnl(L2CAP_ATT_CID, p_data->ble_disconnect.remote_bda);
 }
 
 /*******************************************************************************
diff --git a/components/bt/host/bluedroid/stack/include/stack/l2c_api.h b/components/bt/host/bluedroid/stack/include/stack/l2c_api.h
index e0e4b035e6e..807b523445e 100644
--- a/components/bt/host/bluedroid/stack/include/stack/l2c_api.h
+++ b/components/bt/host/bluedroid/stack/include/stack/l2c_api.h
@@ -1215,19 +1215,6 @@ extern BOOLEAN L2CA_EnableUpdateBleConnParams (BD_ADDR rem_bda, BOOLEAN enable);
 **
 *******************************************************************************/
 extern UINT8 L2CA_GetBleConnRole (BD_ADDR bd_addr);
-
-/*******************************************************************************
-**
-** Function         L2CA_BleDisconnect
-**
-** Description      This function use to disconnect LE connection.
-**
-** Parameters       BD Address of remote
-**
-** Returns          TRUE if disconnect successfully.
-**
-*******************************************************************************/
-extern BOOLEAN L2CA_BleDisconnect (BD_ADDR rem_bda);
 #endif /* (BLE_INCLUDED == TRUE) */
 
 /*******************************************************************************
diff --git a/components/bt/host/bluedroid/stack/l2cap/l2c_api.c b/components/bt/host/bluedroid/stack/l2cap/l2c_api.c
index 7c5e0e2ef84..52d8b45fda0 100644
--- a/components/bt/host/bluedroid/stack/l2cap/l2c_api.c
+++ b/components/bt/host/bluedroid/stack/l2cap/l2c_api.c
@@ -1949,36 +1949,6 @@ BOOLEAN L2CA_RemoveFixedChnl (UINT16 fixed_cid, BD_ADDR rem_bda)
     return (TRUE);
 }
 
-#if BLE_INCLUDED == TRUE
-BOOLEAN L2CA_BleDisconnect (BD_ADDR rem_bda)
-{
-    tL2C_LCB    *p_lcb;
-    tGATT_TCB   *p_tcb;
-
-    p_lcb = l2cu_find_lcb_by_bd_addr (rem_bda, BT_TRANSPORT_LE);
-    if (p_lcb == NULL) {
-        return FALSE;
-    }
-
-    if (p_lcb->link_state != LST_CONNECTED) {
-        return FALSE;
-    }
-
-    p_lcb->disc_reason = HCI_ERR_CONN_CAUSE_LOCAL_HOST;
-    p_lcb->link_state = LST_DISCONNECTING;
-    btsnd_hcic_disconnect (p_lcb->handle, HCI_ERR_PEER_USER);
-
-    p_tcb = gatt_find_tcb_by_addr(rem_bda, BT_TRANSPORT_LE);
-    if (p_tcb == NULL) {
-        return FALSE;
-    }
-
-    gatt_set_ch_state(p_tcb, GATT_CH_CLOSING);
-
-    return TRUE;
-}
-#endif
-
 /*******************************************************************************
 **
 ** Function         L2CA_SetFixedChannelTout