The invention belongs to the technical field of film plating, and particularly relates to equipment for bombarding the surface of a workpiece through energetic plasma and forming a smooth plating layer. The equipment comprises an outer shell, inner shells, workbenches, target materials, a motor, a rotary shaft, a first bearing, a fixing ring, permanent magnets, a rotary rod, thrust bearings, annular magnets, springs, a baffle and a magnetic isolation module. According to the equipment, the cylindrical surface of the upper end of the rotary shaft is provided with one permanent magnet, the upperend and the lower end of the fixing ring are provided with thrust bearings correspondingly, the cylindrical surface of the inner side of the fixing ring is provided with one permanent magnet, the magnetic isolation module is arranged between the upper end of the rotary shaft and the fixing ring, the annular magnets on the rotary rod can do reciprocating motion continuously through the magnetic isolation module, accordingly, magnetic fields loaded on the target materials are uniform, the effect that target material consumption is uniform is ensured, target material wasting is avoided, meanwhile, the plating layer of the to-be-plated workpiece is uniform, and accordingly, the plated workpiece quality is ensured.