The invention relates to the technical field of traditional Chinese medicine production, in particular to a medicine patch forming process which comprises the following steps: step 1, decocting process; Step 2, water cooling process: removing fire toxin from the plaster in cold water in a water cooling tank; Step 3, discharging process: pushing the rod to push out the plaster slurry on the secondrotating shaft; Step 5, forming process, a first air cylinder drives a pressing part to press the base cloth, the plaster slurry and the film into shape; Step 6, outputting process, the traditional Chinese medicine patch is taken out from the top of the annular hoop manually or through a mechanical arm. According to the invention, the plaster slurry in the decocting equipment is poured into the water cooling tank, after the plaster slurry is gathered through cooperation of a gathering assembly and a stirring assembly, the plaster slurry is cut into small parts and conveyed to a clamping assembly on the second conveying mechanism through cutters acting at intervals, and the thin film is conveyed to the pressing station through the film conveying mechanism; the base cloth, the plaster slurryand the film are pressed into shape by a pressing mechanism, so that the traditional Chinese medicine patch is formed automatically, and the manual labor force is reduced.