The invention belongs to the technical field of tire detection, and particularly relates to a new energy automobile tire performance detection system which comprises a box body, wherein an opening isformed in the top end of the box body, the box body is used for being filled with soil, two rectangular plates are fixed to the top end of the box body, sliding grooves are formed in the sides, whichare close to each other, of the two rectangular plates, sliding blocks are arranged in the two sliding grooves correspondingly, a limiting plate is fixed between the two sliding blocks, a support is slidably mounted at the bottom of the limiting plate, a rotating shaft is rotatably mounted at the bottom of the support, hubs are fixed to the two ends of the rotating shaft correspondingly, and a driving motor is fixed to the side wall of the support. According to the invention, the anti-skid performance of a mud tire is detected by simulating the outdoor situation indoors, so that the detectionwork is more real and effective, field on-site detection is not needed at the same time, great convenience is brought to the detection work, the detection efficiency is extremely high, and a large amount of detection cost is saved.