A processing method of a detoxified animal liver food product suitable for infants, characterized in that the method comprises the following steps: S1: taking out a whole liver from an animal body and removing gallbladder, with blood vessels in first porta hepatis of the liver being retained when taking out the liver; S2: spreading the liver taken out on a clean plane, dissecting the first porta hepatis of the liver and determining portal vein, biliary tract, hepatic artery and upper and lower ends of inferior vena cava, and inserting disinfected medical catheters into blood vessels of the portal vein, the biliary tract and blood vessels of the hepatic artery; S3: perfusing a perfusate of 30°C-35°C into the catheters in the portal vein, the hepatic artery and the biliary tract, the perfusate fully flows into a hepatic sinusoid system through the portal vein and the hepatic artery and fully flows into a biliary tract system through the biliary tract; S4: perfusing the perfusate continuously, macrophages and other immune cells containing a large number of toxins, blood and harmful substances in the liver are eliminated from the upper and lower ends of the inferior vena cava continuously and bile is flushed out from the biliary tract system; S5: perfusing continuously, until the liver becomes white from blood red, and then taking down the catheters from the portal vein, the biliary tract and the hepatic artery of the liver to complete the vascular perfusion cleaning, detoxification and cells and tissues preservation of the liver; the animal liver is pork liver, beef liver or lamb liver; S6: configuring materials: mixing starch uniformly with water for standby; S7: eliminating the perfusate from the animal liver; S8: adding carrots into the animal liver from which the perfusate is eliminated, grinding into a homogenate, adding the uniformly mixed starch into the homogenate, mixing uniformly once again, and then cooking; S9: adding nutritional additives into the cooked animal liver homogenate uniformly after the cooked animal liver homogenate is cooled, then filling in cans, vacuuming, sealing, disinfecting, cooling and packaging. S1: taking out a whole liver from an animal body and removing gallbladder, with blood vessels in first porta hepatis of the liver being retained when taking out the liver; S2: spreading the liver taken out on a clean plane, dissecting the first porta hepatis of the liver and determining portal vein, biliary tract, hepatic artery and upper and lower ends of inferior vena cava, and inserting disinfected medical catheters into blood vessels of the portal vein, the biliary tract and blood vessels of the hepatic artery; S3: perfusing a perfusate of 30°C-35°C into the catheters in the portal vein, the hepatic artery and the biliary tract, the perfusate fully flows into a hepatic sinusoid system through the portal vein and the hepatic artery and fully flows into a biliary tract system through the biliary tract; S4: perfusing the perfusate continuously, macrophages and other immune cells containing a large number of toxins, blood and harmful substances in the liver are eliminated from the upper and lower ends of the inferior vena cava continuously and bile is flushed out from the biliary tract system; S5: perfusing continuously, until the liver becomes white from blood red, and then taking down the catheters from the portal vein, the biliary tract and the hepatic artery of the liver to complete the vascular perfusion cleaning, detoxification and cells and tissues preservation of the liver; the animal liver is pork liver, beef liver or lamb liver; S6: configuring materials: mixing starch uniformly with water for standby; S7: eliminating the perfusate from the animal liver; S8: adding carrots into the animal liver from which the perfusate is eliminated, grinding into a homogenate, adding the uniformly mixed starch into the homogenate, mixing uniformly once again, and then cooking; S9: adding nutritional additives into the cooked animal liver homogenate uniformly after the cooked animal liver homogenate is cooled, then filling in cans, vacuuming, sealing, disinfecting, cooling and packaging.