The invention discloses a driving alcohol testing system, which is applied to an action vehicle for alcohol testing when the driver is in the driver's seat or holding the steering wheel.The driving alcohol measuring system includes an iris detecting unit and a processing unit.The iris detection unit is arranged near the driver's seat in the mobile vehicle； the iris detection unit detects a driver's eye to generate an eye detection signal.The processing unit is arranged in the mobile vehicle, and is electrically connected with the iris detection unit. When the processing unit determines that the eye detection signal meets an eye detection condition, the processing unit controls a warning unit to send a warning message, or controls the driving system of the mobile vehicle to slow down or stop.本創作係揭露一種駕駛酒測系統，係應用於一行動載具，以於駕駛人於駕駛座上或握持方向盤時進行酒測。駕駛酒測系統包含一虹膜檢測單元及一處理單元。虹膜檢測單元設置於行動載具內鄰近駕駛座處；虹膜檢測單元檢測一駕駛人之眼部，以產生一眼部檢測訊號。處理單元設置於行動載具內，且電性連接虹膜檢測單元；當處理單元判斷眼部檢測訊號符合一眼部檢測條件時，處理單元控制一警示單元發出一警示訊息，或控制行動載具之行駛系統進行減速或停止之動作。
