Photovoltaic module with hidden bus bar

The utility model relates to a photovoltaic module with a hidden bus bar, which comprises front side glass, cell slices and reverse side glass. The cell slices are connected into cell strings by welding strips. The cell strings are connected through the bus bar. Color or black and white plastic sheets or plastic films are additionally arranged at the front side and/or the reverse side of the bus bar. When the bus bar is protected, the bus bar part cannot be seen through the glass or a transparent back plate. The color of shading strips can be selected to be matched with the color of the cell slices, so that the module is more attractive.