Photovoltaic cell welding method and photovoltaic module

The invention discloses a photovoltaic cell welding method and a photovoltaic module, and the welding method enables a first cell and a second cell which are adjacent to each other to be welded and connected through a welding strip, and comprises the following steps: S1, each of the first cell and the second cell comprises a substrate, and a first solder layer is arranged on a welding spot at a preset position of the substrate; s2, one end of the welding strip is in lap joint with the first solder layer on the first battery piece, the other end of the welding strip is in lap joint with the first solder layer on the second battery piece, and the first battery piece and the second battery piece are connected in a welding mode. The first welding flux layer is arranged on the welding spot of the battery piece in advance, so that the coating layer on the welding strip can be thinner, the cost of the welding strip is effectively reduced, the first welding flux layer is pre-coated, the welding strip and the first we