The invention discloses a soybean milk heating control method. The soybean milk heating control method comprises the following steps: judging whether soybean milk is boiled or not if the soybean milk is boiled, detecting the temperature T1 of the soybean milk by a first temperature sensor and the temperature T2 of a heater by a second temperature sensor, and judging whether a temperature difference delta T between the temperature T1 and the temperature T2 is more than a setting value or not and if the temperature difference delta T is more than the setting value, reducing heating power of the heater to avoid overflowing of the soybean milk due to boiling. The soybean milk heating control method can be not influenced by the problems such as voltage fluctuation and NTC sensitivity so as to better avoid overflowing of the soybean milk.