Lap joint type solar photovoltaic module

The invention relates to the technical field of solar power generation. The invention further discloses a lap joint type solar photovoltaic module comprising first wall bodies, second wall bodies anda top beam. The number of the first wall bodies and the number of the second wall bodies are both two. The second wall bodies are fixedly connected between the two first wall bodies. According to thelap joint type solar photovoltaic module, a mounting frame is pre-mounted on a roof; meanwhile, a first mounting frame and a second mounting frame are connected together; the number of the first mounting frame in asingle-row direction is one; end connecting blocks are fixedly mounted on one side of the first mounting frame and one side of the second mounting frame at the other end respectively; the end connecting block close to one end of the first mounting frame is mounted at the top of the first wall body; the end connecting block close to one end of the second mounting frame is mounted at the position close to the top beam, so that splicing of the end connecting block, the first mounting frame and the second mounting frame can be completed on the ground, then the whole body is mounted on the mounting frame. Therefore, the working difficulty is greatly reduced, and the workload on a roof is small.