The invention provides a soybean milk maker control method. A soybean milk maker comprises a cup used for containing materials for making soybean milk, a heating device arranged on the cup, a smashing device extending into the cup and a control device controlling the heating device and the smashing device to work; the control device acquires temperature for heating the materials for making the soybean milk in the cup through a temperature detection device, after the function program of the soybean milk maker is started, the control device controls the heating device to heat the materials for making the soybean milk to temperature T1 with first heating power P1 and heat the materials for making the soybean milk to temperature T with second heating power P2, and the control device controls the smashing device to smash the materials for making the soybean milk, wherein the T is larger than or equal to 80 DEG C. The control device controls the heating device to heat the materials for making the soybean milk with the larger power and then heat the materials for making the soybean milk with the smaller power, the milk foam producing and rising speed is decreased, and the overflow risk is effectively prevented.