The invention discloses a maintenance method for a steel ring track of a boarding barrel of a synthetic leather boarding machine. The maintenance method comprises the following steps: making a flat iron plate or a steel plate into an arc-shaped plate, the diameter of which is smaller than that of the steel ring track; polishing the inner wall of the worn steel ring track smoothly first; and then inlaying the arc-shaped plate onto the inner wall of a steel ring track, and welding and fixing the arc-shaped plate which is fully attached to the surface of the inner wall of the steel ring track. According to the maintenance method provided by the invention, the purchasing cost is saved greatly, the production is accelerated, the production efficiency is improved, furthermore the structure is simple and the maintenance is convenient.