The invention discloses an ultrasonic enhancement electrochemistry grinding device. The ultrasonic enhancement electrochemistry grinding device is composed of a conductive grinding wheel spindle, an XZ servo shaft, an electrolyte supply system, a grinding moment detection part, an adjustable electrolysis power source, a controllable ultrasonic generator and the like. The grinding wheel spindle isdriven through a servo motor via synchronous belt drive, the grinding wheel spindle is supported through an angular contact ball ceramic bearing in triple fit, the XZ shaft is driven through the servomotor, a precise ball screw pair is adopted for transmission, a grating ruler is added, and a closed-loop detection system is formed; a positive pole of the power source is directly connected with aworkpiece tip, a negative pole is connected with the grinding wheel spindle through an electric brush, an ultrasonic transducer is in contact with a tail tip for mounting, ultrasonic waves sent out bythe ultrasonic transducer is transmitted to the workpiece through the tail tip, under the ultrasonic cavatition, grinding wheel sharpening is achieved, crack initiation and extension in an electrochemical reaction film can be promoted, the removal efficiency is improved, and through changing of parameters such as ultrasonic frequency, current, grinding wheel rotating speed and the like, the grinding process capable of improving the grinding efficiency and the quality of a material difficult to grind can be explored.