diff --git a/components/bt/controller/esp32c3/bt.c b/components/bt/controller/esp32c3/bt.c
index 5f08f7b8c2..b6c21c639d 100644
--- a/components/bt/controller/esp32c3/bt.c
+++ b/components/bt/controller/esp32c3/bt.c
@@ -249,24 +249,18 @@ extern void esp_mac_bb_power_up(void);
 extern void ets_backup_dma_copy(uint32_t reg, uint32_t mem_addr, uint32_t num, bool to_mem);
 #endif
 
-extern char _bss_start_btdm;
-extern char _bss_end_btdm;
-extern char _data_start_btdm;
-extern char _data_end_btdm;
-extern uint32_t _data_start_btdm_rom;
-extern uint32_t _data_end_btdm_rom;
-
 extern uint32_t _bt_bss_start;
 extern uint32_t _bt_bss_end;
 extern uint32_t _btdm_bss_start;
 extern uint32_t _btdm_bss_end;
+extern uint32_t _nimble_bss_start;
+extern uint32_t _nimble_bss_end;
 extern uint32_t _bt_data_start;
 extern uint32_t _bt_data_end;
 extern uint32_t _btdm_data_start;
 extern uint32_t _btdm_data_end;
-
-extern char _bt_tmp_bss_start;
-extern char _bt_tmp_bss_end;
+extern uint32_t _nimble_data_start;
+extern uint32_t _nimble_data_end;
 
 /* Local Function Declare
  *********************************************************************
@@ -316,6 +310,9 @@ static void btdm_hw_mac_power_down_wrapper(void);
 static void btdm_backup_dma_copy_wrapper(uint32_t reg, uint32_t mem_addr, uint32_t num,  bool to_mem);
 
 static void btdm_slp_tmr_callback(void *arg);
+
+static esp_err_t try_heap_caps_add_region(intptr_t start, intptr_t end);
+
 /* Local variable definition
  ***************************************************************************
  */
@@ -876,13 +873,142 @@ static void btdm_controller_mem_init(void)
 
 esp_err_t esp_bt_controller_mem_release(esp_bt_mode_t mode)
 {
-    ESP_LOGW(BTDM_LOG_TAG, "%s not implemented, return OK", __func__);
+    intptr_t mem_start=(intptr_t) NULL, mem_end=(intptr_t) NULL;
+    if (btdm_controller_status != ESP_BT_CONTROLLER_STATUS_IDLE) {
+        return ESP_ERR_INVALID_STATE;
+    }
+
+    if (mode & ESP_BT_MODE_BLE) {
+        /* if the addresses of rom btdm .data and .bss are consecutive,
+           they are registered in the system heap as a piece of memory
+        */
+        if(ets_rom_layout_p->data_end_btdm == ets_rom_layout_p->bss_start_btdm) {
+            mem_start = (intptr_t)ets_rom_layout_p->data_start_btdm;
+            mem_end = (intptr_t)ets_rom_layout_p->bss_end_btdm;
+            if (mem_start != mem_end) {
+                ESP_LOGD(BTDM_LOG_TAG, "Release rom btdm [0x%08x] - [0x%08x], len %d", mem_start, mem_end, mem_end - mem_start);
+                ESP_ERROR_CHECK(try_heap_caps_add_region(mem_start, mem_end));
+            }
+        } else {
+            mem_start = (intptr_t)ets_rom_layout_p->bss_start_btdm;
+            mem_end = (intptr_t)ets_rom_layout_p->bss_end_btdm;
+            if (mem_start != mem_end) {
+                ESP_LOGD(BTDM_LOG_TAG, "Release rom btdm BSS [0x%08x] - [0x%08x], len %d", mem_start, mem_end, mem_end - mem_start);
+                ESP_ERROR_CHECK(try_heap_caps_add_region(mem_start, mem_end));
+            }
+
+            mem_start = (intptr_t)ets_rom_layout_p->data_start_btdm;
+            mem_end = (intptr_t)ets_rom_layout_p->data_end_btdm;
+            if (mem_start != mem_end) {
+                ESP_LOGD(BTDM_LOG_TAG, "Release rom btdm Data [0x%08x] - [0x%08x], len %d", mem_start, mem_end, mem_end - mem_start);
+                ESP_ERROR_CHECK(try_heap_caps_add_region(mem_start, mem_end));
+            }
+        }
+        /* if the addresses of rom interface btdm .data and .bss are consecutive,
+           they are registered in the system heap as a piece of memory
+        */
+        if(ets_rom_layout_p->data_end_interface_btdm == ets_rom_layout_p->bss_start_interface_btdm) {
+            mem_start = (intptr_t)ets_rom_layout_p->data_start_interface_btdm;
+            mem_end = (intptr_t)ets_rom_layout_p->bss_end_interface_btdm;
+            if (mem_start != mem_end) {
+                ESP_LOGD(BTDM_LOG_TAG, "Release rom interface btdm [0x%08x] - [0x%08x], len %d", mem_start, mem_end, mem_end - mem_start);
+                ESP_ERROR_CHECK(try_heap_caps_add_region(mem_start, mem_end));
+            }
+        } else {
+            mem_start = (intptr_t)ets_rom_layout_p->data_start_interface_btdm;
+            mem_end = (intptr_t)ets_rom_layout_p->data_end_interface_btdm;
+            if (mem_start != mem_end) {
+                ESP_LOGD(BTDM_LOG_TAG, "Release rom interface btdm Data [0x%08x] - [0x%08x], len %d", mem_start, mem_end, mem_end - mem_start);
+                ESP_ERROR_CHECK(try_heap_caps_add_region(mem_start, mem_end));
+            }
+
+            mem_start = (intptr_t)ets_rom_layout_p->bss_start_interface_btdm;
+            mem_end = (intptr_t)ets_rom_layout_p->bss_end_interface_btdm;
+            if (mem_start != mem_end) {
+                ESP_LOGD(BTDM_LOG_TAG, "Release rom interface btdm BSS [0x%08x] - [0x%08x], len %d", mem_start, mem_end, mem_end - mem_start);
+                ESP_ERROR_CHECK(try_heap_caps_add_region(mem_start, mem_end));
+            }
+        }
+
+    }
     return ESP_OK;
 }
 
 esp_err_t esp_bt_mem_release(esp_bt_mode_t mode)
 {
-    ESP_LOGW(BTDM_LOG_TAG, "%s not implemented, return OK", __func__);
+    int ret;
+    intptr_t mem_start, mem_end;
+
+    ret = esp_bt_controller_mem_release(mode);
+    if (ret != ESP_OK) {
+        return ret;
+    }
+
+    if (mode & ESP_BT_MODE_BLE) {
+        /* if the addresses of btdm .bss and bt .bss are consecutive,
+           they are registered in the system heap as a piece of memory
+        */
+        if(_bt_bss_end == _btdm_bss_start) {
+            mem_start = (intptr_t)&_bt_bss_start;
+            mem_end = (intptr_t)&_btdm_bss_end;
+            if (mem_start != mem_end) {
+                ESP_LOGD(BTDM_LOG_TAG, "Release BSS [0x%08x] - [0x%08x], len %d", mem_start, mem_end, mem_end - mem_start);
+                ESP_ERROR_CHECK(try_heap_caps_add_region(mem_start, mem_end));
+            }
+        } else {
+            mem_start = (intptr_t)&_bt_bss_start;
+            mem_end = (intptr_t)&_bt_bss_end;
+            if (mem_start != mem_end) {
+                ESP_LOGD(BTDM_LOG_TAG, "Release BT BSS [0x%08x] - [0x%08x], len %d", mem_start, mem_end, mem_end - mem_start);
+                ESP_ERROR_CHECK(try_heap_caps_add_region(mem_start, mem_end));
+            }
+
+            mem_start = (intptr_t)&_btdm_bss_start;
+            mem_end = (intptr_t)&_btdm_bss_end;
+            if (mem_start != mem_end) {
+                ESP_LOGD(BTDM_LOG_TAG, "Release BTDM BSS [0x%08x] - [0x%08x], len %d", mem_start, mem_end, mem_end - mem_start);
+                ESP_ERROR_CHECK(try_heap_caps_add_region(mem_start, mem_end));
+            }
+        }
+        /* if the addresses of btdm .data and bt .data are consecutive,
+           they are registered in the system heap as a piece of memory
+        */
+        if(_bt_data_end == _btdm_data_start) {
+            mem_start = (intptr_t)&_bt_data_start;
+            mem_end = (intptr_t)&_btdm_data_end;
+            if (mem_start != mem_end) {
+                ESP_LOGD(BTDM_LOG_TAG, "Release data [0x%08x] - [0x%08x], len %d", mem_start, mem_end, mem_end - mem_start);
+                ESP_ERROR_CHECK(try_heap_caps_add_region(mem_start, mem_end));
+            }
+        } else {
+            mem_start = (intptr_t)&_bt_data_start;
+            mem_end = (intptr_t)&_bt_data_end;
+            if (mem_start != mem_end) {
+                ESP_LOGD(BTDM_LOG_TAG, "Release BT Data [0x%08x] - [0x%08x], len %d", mem_start, mem_end, mem_end - mem_start);
+                ESP_ERROR_CHECK(try_heap_caps_add_region(mem_start, mem_end));
+            }
+
+            mem_start = (intptr_t)&_btdm_data_start;
+            mem_end = (intptr_t)&_btdm_data_end;
+            if (mem_start != mem_end) {
+                ESP_LOGD(BTDM_LOG_TAG, "Release BTDM Data [0x%08x] - [0x%08x], len %d", mem_start, mem_end, mem_end - mem_start);
+                ESP_ERROR_CHECK(try_heap_caps_add_region(mem_start, mem_end));
+            }
+        }
+
+        mem_start = (intptr_t)&_nimble_bss_start;
+        mem_end = (intptr_t)&_nimble_bss_end;
+        if (mem_start != mem_end) {
+            ESP_LOGD(BTDM_LOG_TAG, "Release NimBLE BSS [0x%08x] - [0x%08x], len %d", mem_start, mem_end, mem_end - mem_start);
+            ESP_ERROR_CHECK(try_heap_caps_add_region(mem_start, mem_end));
+        }
+        mem_start = (intptr_t)&_nimble_data_start;
+        mem_end = (intptr_t)&_nimble_data_end;
+        if (mem_start != mem_end) {
+            ESP_LOGD(BTDM_LOG_TAG, "Release NimBLE Data [0x%08x] - [0x%08x], len %d", mem_start, mem_end, mem_end - mem_start);
+            ESP_ERROR_CHECK(try_heap_caps_add_region(mem_start, mem_end));
+        }
+    }
     return ESP_OK;
 }