In order to realize the efficient processing function of removing head and tail of freshwater fish, a continuous device for cutting head and tail of freshwater fish was designed. The device consisted of intermittent feeding system, tool and fixture driving system, control system and so on. The rated power of the device was 2.3 kW, including a 1.5 kW system for the intermittent feeding, a 0.75 kW for the drive system of cutter fixture and a 0.05 kW control system. The test of processing effect of the device were conducted using （0.400±0.100） kg Parabramis pekinensis and （1.200±0.300） kg Ctenopharyngodon idellus. The research showed that using the device to process P. pekinensis and C. idellus, the rate of meat-getting is 82.1% and 76.3%, sensory score was 0.81 and 0.79, the success rate was 90.00% and 80.00%, respectively, with the processing efficiency of up to 1 350 h^-1.