The invention provides a stage light control method, and relates to the technical field of stage safety. The method comprises the following steps of S1, acquiring a diffusion value of each angle of astage light; S2, opening the stage light, calculating distance between the stage light and the stage, and acquiring an angle value of the stage lamp relative to the stage; S3, selecting an arbitrary point of the stage, reading an actual light brightness value of the point, acquiring a correction value, and generating a stage illumination brightness distribution rule; S4, obtaining a target stage illumination brightness distribution diaphragm according to the position of the stage light when an arbitrary stage light is turned on or turned off; and S5, judging whether an arbitrary point in the target stage illumination brightness distribution diaphragm exceeds a preset illumination intensity range or not, if yes, not allowing to operate the stage light, otherwise allowing to operate, and continuing to execute the step S4. The stage light control method is convenient to control and is good in stage effect and high in intelligent effect, the light distribution is effectively simulated, andthe debugging time is short.