The invention discloses a processing method for surface coating of a full-automatic production line for a sculpture product. The processing method comprises the following steps that step 1, drying theproduct; step 2, testing a full-automatic sand blasting stripping device; step 3, preparing air; step 4, adjusting the position of each spray gun opening; step 5, carrying out test spraying; step 6,spraying a finished product; and step 7, packaging the finished product. According to the processing method, combination of various automatic systems is utilized, the purpose of stripping the coatingcan be realized quickly and efficiently, manpower can be saved by 200%, electricity consumption is saved by 40%, environment-friendly performance by using an automatic dust removal device is excellent, and a full-automatic sand path recycling system can reduce consumption of sprayed sand by 50%.