Abstract: There is a huge demand for clean vegetables and fresh cut potato products in China.In view of lagging development of potato processing and mechanical peeling technology in China，a cutter plate potato peeling device was designed to realize potato cutting，chip removal and discharging.The device was used for peeling test.Results showed that the order of influence degree of peeling effect was cutter speed＞peeling time＞size specification＞single feeding amount.Optimal cutting parameters were as follows：medium potato（90 mm＜length diameter≤120 mm，200 g＜single mass≤400 g），feeding 4 kg at a time，processing at 325 r/min for 50 s.Under these processing parameters，peeling score based on image processing was 94.1，loss score was 89.6，damage score was 99.3，and comprehensive score was 94.3.