Abstract: In order to provide basic data for the corresponding supervision departments, the thesis studied Limit of contaminant in Food of National Standard for Food Safety（GB 2762—2017）, General Standard for Contaminants and Toxins in Food and Feed issued by codex alimentarius commission（CAC）, Commission Regulation（EC） No 1881/2006 and Commission Regulation（EU） No 488/2014 issued by the European Union, and Codex Alimentarius issued by South Korea, the limits of heavy metals in animal derived food were compared and analyzed. The results showed that the limit of lead in meat（except viscera） in China was 0.20 mg/kg, while that in CAC, EU and Korea was 0.10 mg/kg. The limit of lead in fish in China was set at 0.50 mg/kg, the same as that in South Korea and more relaxed than the 0.30 mg/kg set by CAC and EU. China sets the limit of lead in dairy products at 0.30 mg/kg, which was more relaxed than CAC’s and South Korea’s 0.02 mg/kg. China set the limit of lead in eggs and egg products（except preserved eggs and preserved eggs intestines） at 0.20 mg/kg, while CAC, EU and South Korea did not set the limit of lead in eggs and egg products. China set the cadmium limit of 0.10 mg/kg in meat（except viscera）, which was more relaxed than 0.05 mg/kg in South Korea（beef, mutton, pork and poultry） and the EU. China set the cadmium limit of 0.10 mg/kg in fish, which was the same as South Korea（fish, frozen food fish and frozen food fish offal） and EU had different cadmium limits for different fish species. The limit of cadmium in bivalve aquatic products in China was 2.00 mg/kg, which was more relaxed than 1.00 mg/kg in EU. South Korea set the cadmium limit for shellfish at 0.50 mg/kg, which was much stricter than South Korea’s 1.00 mg/kg. The limit of cadmium in eggs and egg products was regulated only in China, and the limit value was 0.05 mg/kg. China set the methyl mercury limit for aquatic animals and their products（except carnivorous fish products） at 0.50 mg/kg, which was stricter than Korea’s（fish, frozen food fish and frozen food fish viscera） 1.00 mg/kg. Only China and CAC had regulated the tin limit standard, while South Korea and EU had not regulated the tin limit standard for animal food. China set the tin limit of food at 250.00 mg/kg, but did not subdivide the types of food. The CAC set a tin limit of 200.00 mg/kg for cooked meat, corned beef and luncheon meat. It indicated that CAC, EU and Korea were stricter than China in the limit of heavy metals in most animal-derived foods, which should be paid attention to by relevant regulatory authorities in China. Finally, in view of the excessive heavy metal content in animal derived food, the following suggestions were put forward: strictly control the discharge of industrial “three wastes”; advocate standard breeding mode; improving research and development and innovation capacity; timely improve the relevant standards and regulations, and strengthen industry supervision.