diff --git a/components/bt/host/bluedroid/bta/dm/bta_dm_api.c b/components/bt/host/bluedroid/bta/dm/bta_dm_api.c
index 04a95edfa2..8a6538bf0b 100644
--- a/components/bt/host/bluedroid/bta/dm/bta_dm_api.c
+++ b/components/bt/host/bluedroid/bta/dm/bta_dm_api.c
@@ -1647,6 +1647,8 @@ extern void BTA_DmBleAdvStop (BOOLEAN start, tBTA_START_STOP_ADV_CMPL_CBACK *p_s
 #endif // #if (BLE_42_ADV_EN == TRUE)
 
 #endif
+
+#if (BLE_GATT_BGCONN == TRUE)
 /*******************************************************************************
 **
 ** Function         BTA_DmBleSetBgConnType
@@ -1677,6 +1679,7 @@ void BTA_DmBleSetBgConnType(tBTA_DM_BLE_CONN_TYPE bg_conn_type, tBTA_DM_BLE_SEL_
     }
 #endif
 }
+#endif// (BLE_GATT_BGCONN == TRUE)
 
 /*******************************************************************************
 **
diff --git a/components/bt/host/bluedroid/bta/dm/bta_dm_main.c b/components/bt/host/bluedroid/bta/dm/bta_dm_main.c
index 9f031fe522..6d86d41be3 100644
--- a/components/bt/host/bluedroid/bta/dm/bta_dm_main.c
+++ b/components/bt/host/bluedroid/bta/dm/bta_dm_main.c
@@ -137,7 +137,9 @@ const tBTA_DM_ACTION bta_dm_action[BTA_DM_MAX_EVT] = {
     bta_dm_ble_confirm_reply,               /*  BTA_DM_API_BLE_CONFIRM_REPLY_EVT    */
     bta_dm_security_grant,                  /* BTA_DM_API_BLE_SEC_GRANT_EVT */
 #endif  ///SMP_INCLUDED == TRUE
-    bta_dm_ble_set_bg_conn_type,
+#if (BLE_GATT_BGCONN == TRUE)
+    bta_dm_ble_set_bg_conn_type,            /* BTA_DM_API_BLE_SET_BG_CONN_TYPE */
+#endif // (BLE_GATT_BGCONN == TRUE)
     bta_dm_ble_set_conn_params,             /* BTA_DM_API_BLE_CONN_PARAM_EVT */
 #if (BLE_42_SCAN_EN == TRUE)
     bta_dm_ble_set_scan_fil_params,         /* BTA_DM_API_BLE_SCAN_FIL_PARAM_EVT */
diff --git a/components/bt/host/bluedroid/bta/dm/include/bta_dm_int.h b/components/bt/host/bluedroid/bta/dm/include/bta_dm_int.h
index 639e758802..d03825a5d6 100644
--- a/components/bt/host/bluedroid/bta/dm/include/bta_dm_int.h
+++ b/components/bt/host/bluedroid/bta/dm/include/bta_dm_int.h
@@ -123,7 +123,9 @@ enum {
     BTA_DM_API_BLE_CONFIRM_REPLY_EVT,
     BTA_DM_API_BLE_SEC_GRANT_EVT,
 #endif  ///SMP_INCLUDED == TRUE
+#if (BLE_GATT_BGCONN == TRUE)
     BTA_DM_API_BLE_SET_BG_CONN_TYPE,
+#endif // (BLE_GATT_BGCONN == TRUE)
     BTA_DM_API_BLE_CONN_PARAM_EVT,
     /*******This event added by Yulong at 2016/10/25 to
     support the scan filter setting for the APP******/
diff --git a/components/bt/host/bluedroid/bta/hh/bta_hh_le.c b/components/bt/host/bluedroid/bta/hh/bta_hh_le.c
index ae150a3c94..9bb7801a41 100644
--- a/components/bt/host/bluedroid/bta/hh/bta_hh_le.c
+++ b/components/bt/host/bluedroid/bta/hh/bta_hh_le.c
@@ -2605,8 +2605,9 @@ static void bta_hh_le_add_dev_bg_conn(tBTA_HH_DEV_CB *p_cb, BOOLEAN check_bond)
         BTA_GATTC_Enh_Open(bta_hh_cb.gatt_if, p_cb->addr, BLE_ADDR_UNKNOWN_TYPE, FALSE,
                 BTA_GATT_TRANSPORT_LE, FALSE, BLE_ADDR_UNKNOWN_TYPE, false, 0xFF, 0xFF, 0, NULL, NULL);
         p_cb->in_bg_conn = TRUE;
-
+#if (BLE_GATT_BGCONN == TRUE)
         BTA_DmBleSetBgConnType(BTA_DM_BLE_CONN_AUTO, NULL);
+#endif // (BLE_GATT_BGCONN == TRUE)
     }
     return;
 }
diff --git a/components/bt/host/bluedroid/stack/btm/btm_ble_bgconn.c b/components/bt/host/bluedroid/stack/btm/btm_ble_bgconn.c
index c82179aa92..18cb93c125 100644
--- a/components/bt/host/bluedroid/stack/btm/btm_ble_bgconn.c
+++ b/components/bt/host/bluedroid/stack/btm/btm_ble_bgconn.c
@@ -39,10 +39,11 @@
 #endif
 
 #if (BLE_INCLUDED == TRUE)
-
 static void btm_suspend_wl_activity(tBTM_BLE_WL_STATE wl_state);
 static void btm_wl_update_to_controller(void);
 
+#if (BLE_GATT_BGCONN == TRUE)
+
 // Unfortunately (for now?) we have to maintain a copy of the device whitelist
 // on the host to determine if a device is pending to be connected or not. This
 // controls whether the host should keep trying to scan for whitelisted
@@ -118,6 +119,7 @@ static bool background_connections_pending(void)
     }
     return pending_connections;
 }
+#endif // (BLE_GATT_BGCONN == TRUE)
 
 /*******************************************************************************
 **
@@ -335,6 +337,7 @@ BOOLEAN btm_update_dev_to_white_list(BOOLEAN to_add, BD_ADDR bd_addr, tBLE_ADDR_
         return FALSE;
     }
 
+#if (BLE_GATT_BGCONN == TRUE)
     if (to_add) {
         /* added the bd_addr to the connection hash map queue */
         if(!background_connection_add((bt_bdaddr_t *)bd_addr)) {
@@ -354,6 +357,7 @@ BOOLEAN btm_update_dev_to_white_list(BOOLEAN to_add, BD_ADDR bd_addr, tBLE_ADDR_
             return TRUE;
         }
     }
+#endif // (BLE_GATT_BGCONN == TRUE)
 
     if (update_wl_cb){
         //save add whitelist complete callback
@@ -381,7 +385,10 @@ void btm_ble_clear_white_list (tBTM_UPDATE_WHITELIST_CBACK *update_wl_cb)
 
     BTM_TRACE_EVENT ("btm_ble_clear_white_list");
     btsnd_hcic_ble_clear_white_list();
+
+#if (BLE_GATT_BGCONN == TRUE)
     background_connections_clear();
+#endif // (BLE_GATT_BGCONN == TRUE)
 
     if (update_wl_cb) {
         p_cb->update_wl_cb = update_wl_cb;
@@ -488,6 +495,7 @@ void btm_ble_remove_from_white_list_complete(UINT8 *p, UINT16 evt_len)
     }
 }
 
+#if (BLE_GATT_BGCONN == TRUE)
 /*******************************************************************************
 **
 ** Function         btm_ble_start_auto_conn
@@ -660,6 +668,8 @@ void btm_ble_initiate_select_conn(BD_ADDR bda)
         BTM_TRACE_ERROR("btm_ble_initiate_select_conn failed");
     }
 }
+#endif // (BLE_GATT_BGCONN == TRUE)
+
 #if (GATT_BG_CONN_DEV == TRUE)
 /*******************************************************************************
 **
@@ -698,12 +708,15 @@ BOOLEAN btm_ble_suspend_bg_conn(void)
 *******************************************************************************/
 static void btm_suspend_wl_activity(tBTM_BLE_WL_STATE wl_state)
 {
+#if (BLE_GATT_BGCONN == TRUE)
     if (wl_state & BTM_BLE_WL_INIT) {
         btm_ble_start_auto_conn(FALSE);
     }
     if (wl_state & BTM_BLE_WL_SCAN) {
         btm_ble_start_select_conn(FALSE, NULL);
     }
+#endif // (BLE_GATT_BGCONN == TRUE)
+
 #if (BLE_42_ADV_EN == TRUE)
     if (wl_state & BTM_BLE_WL_ADV) {
         btm_ble_stop_adv();
diff --git a/components/bt/host/bluedroid/stack/btm/btm_ble_gap.c b/components/bt/host/bluedroid/stack/btm/btm_ble_gap.c
index 6667a9d96f..f8699d6b0a 100644
--- a/components/bt/host/bluedroid/stack/btm/btm_ble_gap.c
+++ b/components/bt/host/bluedroid/stack/btm/btm_ble_gap.c
@@ -956,6 +956,7 @@ BOOLEAN BTM_BleLocalPrivacyEnabled(void)
 #endif
 }
 
+#if (BLE_GATT_BGCONN == TRUE)
 /*******************************************************************************
 **
 ** Function         BTM_BleSetBgConnType
@@ -1014,6 +1015,7 @@ BOOLEAN BTM_BleSetBgConnType(tBTM_BLE_CONN_TYPE   bg_conn_type,
     }
     return started;
 }
+#endif // (BLE_GATT_BGCONN == TRUE)
 
 #if (GATT_BG_CONN_DEV == TRUE)
 /*******************************************************************************
@@ -2987,6 +2989,7 @@ void btm_clear_all_pending_le_entry(void)
     }
 }
 
+#if (BLE_GATT_BGCONN == TRUE)
 /*******************************************************************************
 **
 ** Function         btm_send_sel_conn_callback
@@ -3030,6 +3033,7 @@ void btm_send_sel_conn_callback(BD_ADDR remote_bda, UINT8 evt_type, UINT8 *p_dat
         btm_ble_initiate_select_conn(remote_bda);
     }
 }
+#endif // #if (BLE_GATT_BGCONN == TRUE)
 
 #if (BLE_42_SCAN_EN == TRUE)
 static void btm_adv_pkt_handler(void *arg)
@@ -3187,10 +3191,13 @@ static void btm_ble_process_last_adv_pkt(void)
                  __func__);
         return;
     }
+#if (BLE_GATT_BGCONN == TRUE)
     /* background connection in selective connection mode */
     if (btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_SELECTIVE) {
         //do nothing
-    } else {
+    } else
+#endif // (BLE_GATT_BGCONN == TRUE)
+    {
         if (p_scan_results_cb && (result & BTM_BLE_DISCO_RESULT)) {
             (p_scan_results_cb)((tBTM_INQ_RESULTS *) &p_i->inq_info.results, p_le_inq_cb->adv_data_cache);
             p_le_inq_cb->adv_len = 0;
@@ -3298,6 +3305,7 @@ static void btm_ble_process_adv_pkt_cont(BD_ADDR bda, UINT8 addr_type, UINT8 evt
             btm_acl_update_busy_level (BTM_BLI_INQ_DONE_EVT);
         }
     }
+#if (BLE_GATT_BGCONN == TRUE)
     /* background connection in selective connection mode */
     if (btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_SELECTIVE) {
         if (result & BTM_BLE_SEL_CONN_RESULT) {
@@ -3305,7 +3313,9 @@ static void btm_ble_process_adv_pkt_cont(BD_ADDR bda, UINT8 addr_type, UINT8 evt
         } else {
             BTM_TRACE_DEBUG("None LE device, can not initiate selective connection\n");
         }
-    } else {
+    } else
+#endif // (BLE_GATT_BGCONN == TRUE)
+    {
         if (p_scan_results_cb && (result & BTM_BLE_DISCO_RESULT)) {
             (p_scan_results_cb)((tBTM_INQ_RESULTS *) &p_i->inq_info.results, p_le_inq_cb->adv_data_cache);
             p_le_inq_cb->adv_len = 0;
diff --git a/components/bt/host/bluedroid/stack/btm/btm_devctl.c b/components/bt/host/bluedroid/stack/btm/btm_devctl.c
index d32030a84e..54459b4d6b 100644
--- a/components/bt/host/bluedroid/stack/btm/btm_devctl.c
+++ b/components/bt/host/bluedroid/stack/btm/btm_devctl.c
@@ -174,8 +174,10 @@ static void reset_complete(void)
 
 #if (BLE_INCLUDED == TRUE)
     btm_cb.ble_ctr_cb.conn_state = BLE_CONN_IDLE;
+#if (BLE_GATT_BGCONN == TRUE)
     btm_cb.ble_ctr_cb.bg_conn_type = BTM_BLE_CONN_NONE;
     btm_cb.ble_ctr_cb.p_select_cback = NULL;
+#endif // (BLE_GATT_BGCONN == TRUE)
 #if (GATT_BG_CONN_DEV == TRUE)
     gatt_reset_bgdev_list();
 #endif // #if (GATT_BG_CONN_DEV == TRUE)
diff --git a/components/bt/host/bluedroid/stack/btm/include/btm_ble_int.h b/components/bt/host/bluedroid/stack/btm/include/btm_ble_int.h
index cb0ff2a5b1..9be480869c 100644
--- a/components/bt/host/bluedroid/stack/btm/include/btm_ble_int.h
+++ b/components/bt/host/bluedroid/stack/btm/include/btm_ble_int.h
@@ -343,11 +343,15 @@ typedef struct {
     struct pkt_queue *adv_rpt_queue;
     struct osi_event *adv_rpt_ready;
 #endif // #if (BLE_42_SCAN_EN == TRUE)
+#if (BLE_GATT_BGCONN == TRUE)
     /* background connection procedure cb value */
     tBTM_BLE_CONN_TYPE bg_conn_type;
+#endif // (BLE_GATT_BGCONN == TRUE)
     UINT32 scan_int;
     UINT32 scan_win;
+#if (BLE_GATT_BGCONN == TRUE)
     tBTM_BLE_SEL_CBACK *p_select_cback;
+#endif // (BLE_GATT_BGCONN == TRUE)
     /* white list information */
     UINT8 white_list_avail_size;
 #if (BLE_50_EXTEND_SYNC_EN == TRUE)