An ultrasonic transducer self-detection and adjustment system and detection and adjustment method thereof are provided. The ultrasonic transducer self-detection and adjustment system includes an ultrasonic transducer, a processing module, a power output module, a current detecting module and a conversion module. The ultrasonic transducer includes a conduction output end. The processing module generates a low voltage control signal. The power output module is connected to the conduction output end and the processing module, and receives the low voltage control signal, and the power output module controls the conduction output end according to the low voltage control signal. The current detecting module connects the conduction output end and detects the current of the conduction output end, and generates current information. The conversion module is connected to the current detecting module and receives the current information, and converts the current information into a current signal, and the current signal is transmitted to the processing module, and the processing module compares the current signal with the preset value. The preset processing is performed according to the current signal that does not match the preset value.本發明係揭露一種超音波傳導器之自我檢測及調整系統及其檢測及調整方法。超音波傳導器之自我檢測及調整系統包含超音波傳導器、處理模組、功率輸出模組、偵測模組及轉換模組。超音波傳導器包含傳導輸出端。處理模組產生低電壓控制訊號。功率輸出模組連結傳導輸出端及處理模組,並接收低電壓控制訊號,功率輸出模組依據低電壓控制訊號控制傳導輸出端作動。偵測模組連結傳導輸出端並偵測作動之傳導輸出端,且產生電流資訊。轉換模組連結偵測模組且接收該電流資訊,並轉換電流資訊為電流訊號,電流訊號傳送至處理模組,處理模組比對電流訊號及預設值,並依據不符預設值之電流訊號執行預設處理。