Abstract: An ultrasonic imaging microwave therapeutic apparatus includes a microwave radiation probe, a microwave generating unit, a laser generating unit, a color Doppler ultrasound imaging unit, and a microcomputer control unit. The microcomputer control unit outputs the microwave power control signal to control and adjust the power of the microwave generating unit. The microcomputer control unit outputs the laser control signal to control the switch-on/off of the laser generating unit. The advantages of using the therapeutic apparatus to treat the lower extremity varicose vein disease are as follows. The closure of the varicose vessel is accurate, firm, and thorough. The effect is definite. The traumas for patients are small. The pain of patients is light. The intraoperative bleeding is less. The recovery of patients is rapid. It is difficult to form deep vein thrombosis, can accurately treat the diseased blood vessel and simultaneously instantly verify the effect of the surgery.