Abstract: The present invention discloses a liquid immersing photovoltaic module, which comprises a baseboard, a transparent cover plate, side walls, solar cells or solar cell module and insulating liquid. The insulating liquid is inside a container formed by baseboard, cover plate and side walls. The baseboard is a transparent plate or a metal plate with fins on lower surface. The solar cells are located on the upper surface of the baseboard. The lower surface of the solar cell module is mounted on the top of a supporting board with fins, and the lower ends of the supporting board fins are installed on the top of the baseboard. This invention allows the solar cell to increase the utilization ratio of incident light, reduce the recombination of current carriers on the surface of solar cells, and increase the current output.