The invention relates to an ultrasonic clothes washing machine of an automobile servicing station. The ultrasonic clothes washing machine comprises a bracket, wherein an ultrasonic cleaning chamber is arranged in the bracket; more than two conveying rolls are distributed in the length direction of the ultrasonic cleaning chamber in parallel; more than two ultrasonic generators are arranged at the bottom wall or side wall of the ultrasonic cleaning chamber; a trapezoidal part is arranged at the bottom part of the ultrasonic cleaning chamber, the bottom pat of the trapezoidal part is provided with a filtering groove, and the filtering groove is communicated with the trapezoidal part through a liquid inlet; a filtering net is arranged in the filtering groove, and is used for separating the filtering groove into two parts, namely a liquid inlet and a liquid outlet; the liquid outlet is connected with the bottom part of the trapezoidal part through the liquid conveying pump. The ultrasonic clothes washing machine has the advantages that an automobile carpet can be quickly cleaned by the ultrasonic cleaning chamber, and can be put on the conveying rolls in parallel, and the conveying rolls can be moved left and right and can convey the carpet, so as to thoroughly clean without dead corner; by arranging the filtering groove, a detergent can be timely regenerated, and the cleaning efficiency is further improved.