The invention discloses a solar cell and a solar cell module, and relates to the technical field of solar energy. The solar cell comprises a substrate, passivation layers on the upper surface and the lower surface of the substrate, a front field doping layer positioned on the passivation layer on the upper surface, an antireflection layer positioned on the front field doping layer, interdigital structures positioned under the passivation layer on the lower surface, TCO thin films and metal electrodes, wherein the passivation layers are hydrogenation amorphous silicon oxide thin films. The solar cell is simple in structure and convenient to use, the utilization rate of incident light is improved, and the photoelectric conversion efficiency of the solar cell is improved.