The invention discloses a paint coating auxiliary platform. The paint coating auxiliary platform comprises a high-position operating platform body and a low-position operating platform body fixedly connected with the high-position operating platform body. A platform bottom formed by fixed connection of the bottoms of the high-position operating platform body and the low-position operating platformbody is provided with universal wheels. The high-position operating platform body comprises a high-position left side frame, a high-position right side frame, a high-position platform main arranged at the upper end, a connecting rod arranged at the rear end and connected with the high-position left side frame and high-position climbing rods arranged at the front end and connected with the high-position left side frame and the high-position right side frame. The low-position operating platform body comprises a low-position left side frame, a low-position right side frame, a low-position platform main arranged at the upper end, low-position climbing rods arranged at the front end and connected with the low-position left side frame and the low-position right side frame, a low-position left side handrail and a low-position right side handrail, wherein the low-position left side handrail and the low-position right side handrail are arranged at the upper end of the low-position platform main. According to the paint coating auxiliary platform, the requirements for high-position construction and low-position construction can be met, the requirements for existing out-field paint coating operation are met through selection of the two heights, using is convenient, and the working efficiency of paint coating is improved.