The invention provides a stage lamp capable of achieving automatic focusing. The stage lamp comprises a light source, a focusing lens set, a zoom lens set, a front fixed lens set, a distance measurement module, a first motor, a second motor and a microprocessor. The light source, the focusing lens set, the zoom lens set and the front fixed lens set form a lighting system of the stage lamp, the distance measurement module is installed on the stage lamp, the first motor drives the focusing lens set to move, the second motor drives the zoom lens set to move, the distance measurement module is insignal connection with the microprocessor, and the microprocessor controls the first motor and the second motor. According to the stage lamp capable of achieving automatic focusing, compared with theprior art, automatic focusing can be achieved, focusing does not need to be manually conducted on illuminated objects one by one at a live performance, before the live performance is erected and completed, arrangement work of lighting programs can be completed, and the cost of a lightning designer and the budget of a performing unit are saved.