The present disclosure disclosed is a method for reducing the purine content of soybean milk, which belongs to the technical field of food depurination. According to the method, purine-reducing soybeans are taken as raw materials, and macromolecular purine in a bound state is selected to be hydrolyzed into small molecules according to different existence forms of purine in soybeans, and then micromolecular purine is adsorbed and removed by an adsorbent. The method is high in feasibility and good in removal effect. The soybean milk of the present disclosure is safe and non-toxic, high in purine removal rate, and low in nutrient loss, has no obvious change in mouth feel compared with common soybean milk, and can be used as a safe food for gout patients.