The present invention provides a control method and device of a laser projection apparatus. The shell of the laser projection apparatus is provided with a thermal induction sensor, wherein the thermal induction sensor is used for acquiring infrared signals in an environment in which the laser projection apparatus is located. The method includes the following steps that: first signals outputted by the thermal induction sensor at a first time point and second signals outputted by the thermal induction sensor at a current time point are obtained, wherein the first time point is before the current time point, and the first signals and the second signals are signals outputted by the thermal induction sensor according to received human body infrared signals; a first signal change rate between the first time point and the current time point is determined according to the first signals and the second signals; a preset signal change rate and threshold signals are acquired; and the operating mode of the laser projection apparatus is determined according to the first signal change rate, the preset signal change rate, the second signals and the threshold signals. With the control method and device of the laser projection apparatus adopted, the accuracy of control on the laser projection apparatus can be improved.