The invention relates to automobile coating pretreatment equipment. The automobile coating pretreatment equipment comprises a base body and a walking track, wherein a bath tank is arranged on the base body, a travelling mechanism and an overturning mechanism are supported on the walking track, a support frame is fixedly connected to the overturning mechanism, the travelling mechanism comprises a main wheel set, a driven wheel and a driving motor, the driving motor drives the main wheel set, the main wheel set is connected with the driven wheel by a main shaft, and the main wheel set and the driven wheel are supported to the walking track respectively; and the overturning mechanism comprises a rotating shaft, an overturning motor and a rotary driving pair, and the overturning motor drives the rotating shaft to achieve rotating fitting by the rotary driving pair. The automobile coating pretreatment equipment is short in length, the investment expense can be saved, the operating expense is low, and the automobile coating pretreatment equipment is particularly suitable for a coating workshop for single-variety mass production.