Abstract: In this paper, shred fish producer was taken as the object. Some key components and technological parameters, such as terminal velocity of cutting tools, thickness of cutting tools, quantity of cutting tools and striking time, were studied to improve the utilization values of freshwater fish. The optimal combination of the key components and technological parameters were determined by organoleptic investigation and fraction void test on smitten fish, which was digestion time 30 min, striking time 20 s, terminal velocity of cutting tool 2 840 r/min and thickness of cutting tool 5 mm. With this craft, the productivity of shred fish producer was about 150 kg/h. This equipment can ameliorate processing technology of dried fish floss, and improve the production efficiency and raw material utilization rate, thus impulse the development of processing industry for fresh water fish.