In order to understand of the accumulation rule of heavy metal cadmium in fish and provide a theoretical basis for economic，safe，and rapid solution of the problem of heavy metal enrichment in fish，crucian carp （Carassius auratus），a commonly farmed fish in China，was used as the test object.After determining the safe concentration of cadmium in crucian carp，crucian carp were exposed to water containing different concentrations of cadmium for 14 days.The accumulation and distribution of cadmium in various fish tissues were detected by using an inductively coupled plasma mass spectrometer.Then the crucian carp was transferred to clear water at different flow rates for 14 d.The effect of different water flow rates on cadmium removal from fish was compared，and the non-carcinogenic dietary risk of crucian carp edible parts was assessed after exposure test and clearance test，respectively.The results showed that the safe mass concentration of cadmium in crucian carp for 96 h was 1.528 mg/L.Cadmium was more enriched in the crucian carp head and liver，but less enriched in the muscle，and cadmium enrichment degree was positively correlated with cadmium concentration in aquatic environment and cadmium exposure time.Cadmium in the crucian carp muscles and gallbladder was excreted faster，while cadmium in the liver and kidneys was excreted slower，and the clearance effect was the best when the water flow rate was 0.1 to 0.2 m/s.After exposure to cadmium in water for 14 days of ，the crucian carp head and muscle had the potential risk of non-carcinogenic.After cadmium removal from water for 14 days of，the muscle could reach the edible standard，but the fish head still had the risk of food.In summary，there are significant differences in the accumulation and capacity ability of cadmium in various tissues and organs of crucian carp.Appropriate water flow rate is conducive to the discharge of cadmium in crucian carp，and the cadmium-contaminated crucian carp need to be removed from heavy metals before it can be eaten.