Embodiments of the present disclosure relate to the field of solar cell technologies, and provide a solar cell, a method for preparing the same, and a photovoltaic module. The solar cell includes an N-type silicon substrate including a front surface and a rear surface opposite to the front surface. The front surface includes a plurality of pyramid structures, the rear surface includes a plurality of grooves, and some of the plurality of grooves are sequentially arranged along one arrangement direction. The solar cell includes a passivation layer formed over the front surface, a tunneling dielectric layer formed over the rear surface, and a doped conductive layer formed over the tunneling dielectric layer. Embodiments of the present disclosure at least help improve the photoelectric conversion efficiency of the solar cell by changing a morphology of the rear surface of the N-type silicon substrate.