The invention relates to a static electricity leaking prevention powder coating spraying process. An automatic system, a spraying system and a dust removing system. The automatic system comprises a hook, an electric hoist, a self-rotation mechanism, a guide rail and a support; the hook is connected with the electric hoist; movement and lifting of the hook are driven by the electric hoist; the electric hoist is connected with the self-rotation mechanism; the spraying system comprises a spraying chamber; a spraying gun is arranged inside the spraying chamber; an electric control door is arrangedon the top wall of the spraying chamber and is a hinged door; a sealing device is arranged on the electric control door; and the spraying chamber is connected with the dust removing system. The hookcan drive a workpiece to achieve free lifting and rotation, after lifting to the fixed position of the spraying chamber, the workpiece freely rotates on the hook, the spraying gun is opened for spraying, labor operation is not needed, the spraying chamber is adopted for spraying, influence on the environment in the spraying process can be reduced, personnel injury is avoided, and time and labor are saved in the whole spraying process.