diff --git a/components/bt/controller/esp32h2/bt.c b/components/bt/controller/esp32h2/bt.c
index 86d3e6253d..65435cf80a 100644
--- a/components/bt/controller/esp32h2/bt.c
+++ b/components/bt/controller/esp32h2/bt.c
@@ -872,8 +872,20 @@ static void ble_rtc_clk_init(esp_bt_controller_config_t *cfg)
 #if CONFIG_RTC_CLK_SRC_INT_RC
         s_bt_lpclk_src = MODEM_CLOCK_LPCLK_SRC_RC_SLOW;
 #elif CONFIG_RTC_CLK_SRC_EXT_CRYS
+        uint32_t clk_freq = 0;
+
         if (rtc_clk_slow_src_get() == SOC_RTC_SLOW_CLK_SRC_XTAL32K) {
-            s_bt_lpclk_src = MODEM_CLOCK_LPCLK_SRC_XTAL32K;
+            if (!esp_clk_tree_src_get_freq_hz(SOC_MOD_CLK_XTAL32K, ESP_CLK_TREE_SRC_FREQ_PRECISION_EXACT, &clk_freq)) {
+                if (clk_freq > 32700 && clk_freq < 33800) {
+                    s_bt_lpclk_src = MODEM_CLOCK_LPCLK_SRC_XTAL32K;
+                } else {
+                    ESP_LOGW(NIMBLE_PORT_LOG_TAG, "32.768kHz XTAL detection error, switch to main XTAL as Bluetooth sleep clock");
+                    s_bt_lpclk_src = MODEM_CLOCK_LPCLK_SRC_MAIN_XTAL;
+                }
+            } else {
+                ESP_LOGW(NIMBLE_PORT_LOG_TAG, "32.768kHz XTAL detection error, switch to main XTAL as Bluetooth sleep clock");
+                s_bt_lpclk_src = MODEM_CLOCK_LPCLK_SRC_MAIN_XTAL;
+            }
         } else {
             ESP_LOGW(NIMBLE_PORT_LOG_TAG, "32.768kHz XTAL not detected, fall back to main XTAL as Bluetooth sleep clock");
             s_bt_lpclk_src = MODEM_CLOCK_LPCLK_SRC_MAIN_XTAL;