The invention provides an ultrasonic diagnosis and treatment integrated machine which comprises a central processor and an ultrasonic transducer, wherein the central processor is provided with a control unit, a diagnosis processing unit connected with the control unit and a treatment processing unit connected with the control unit, and the ultrasonic transducer is provided with at least one piezoelectric crystal, an emission driving circuit for driving the piezoelectric crystal and a receiving circuit for receiving a return signal of the piezoelectric crystal, wherein the emission driving circuit is connected with the diagnosis processing unit and the treatment processing unit, and the strength of ultrasonic wave signals sent by each piezoelectric crystal under the drive of the diagnosis processing unit is less than that of the ultrasonic wave signals sent by each piezoelectric crystal under the drive of the treatment processing unit. The ultrasonic diagnosis and treatment integrated machine has low production cost and ideal treatment effect.