A control method of a glass plate tempering process comprises the following steps: after a glass plate enters a heating furnace, a monitoring unit monitors working parameters of a heating element in real time and filters the working parameters of the heating element; the working parameters, obtained after filtering processing, of the heating element are transmitted to a control unit; the control unit compares each received working parameter of the heating element with N set thresholds, and when the working parameter of the heating element reaches the xth threshold after passing an extreme value, the control unit sends a command to a drive mechanism of the heating furnace to adjust the swing speed Vx of the glass plate. By monitoring the working parameters of the heating element in the operation process of the heating furnace in real time, the swing speed of the glass plate in the heating process can be controlled more scientifically and more precisely, so that the glass plate can swing back and forth more stably.