NOVELTY - A solar cell plating film device comprises a coating groove (1) for containing plating solution. The plating solution is provided with metal anode (2) used for plating film in plating region and connected with the anode of the pre-coating solar cell. The pre-coating solar cell is provided with a silicon substrate, a PN junction formed on the silicon substrate, an antireflection film on solar cell light-receiving surface and a back electrode set on the light-back surface.    USE - Solar cell plating film device for plating film on the light receiving surface of the pre-solar cell in plating region.    ADVANTAGE - The device improves reliability and efficiency of the coating film, reduces solar battery film fragment rate and avoids external connection with power supply for electroplating.    DETAILED DESCRIPTION - A solar cell plating film device comprises a coating groove (2) for containing plating solution. The plating solution is provided with metal anode used for plating film in plating region and connected with the anode of the pre-coating solar cell. The pre-coating solar cell is provided with a silicon substrate, a PN junction formed on the silicon substrate, an antireflection film on solar cell light-receiving surface and a back electrode set on the light-back surface. The antireflection film is covered with the light-receiving surface except the pre-coating area. A pre-coating solar cell transmission module (3, 4), horizontal laying in the coating groove and used for transmitting the pre-coating solar cell with the light surface downward arranged, comprising upper roller wheel (30) and lower roller wheel arranged in set and transmitting the pre-coating solar cell in the same linear velocity. The upper roller wheel is electrically connected between the back electrode and the plating solution of the pre-coating solar cell, and coating light source (5), for irradiating on the light receiving surface of the pre-coating solar cell and producing the photo-electricity energy on it. The pre-coating solar cell is coated film in the pre-coating area through the photo-electricity energy. An INDEPENDENT CLAIM is included for a solar cell plating film method processed by the solar cell plating film device.    DESCRIPTION OF DRAWING(S) - The drawing is a schematic diagram of the solar cell plating film device.    Coating groove (1)    Metal anode (2)    Solar cell transmission modules (3, 4)    Coating light source (5)    Upper roller wheel (30)