Reliable low-silver-consumption solar cell

The invention provides a reliable manufacturing method of a low-silver-consumption solar cell. The reliable manufacturing method comprises the following steps: manufacturing a solar cell with a PN junction layer structure; preparing antireflection film layers on the surfaces of the light receiving surface PN junction layer and the shady surface PN junction layer respectively; preparing a barrier layer on the antireflection film layer on the back surface of the battery piece; sequentially preparing a metal conductive film layer and a metal protective layer on the barrier layer; grid lines are prepared on the front side and the back side of the cell laminated structure according to design requirements to form a solar cell with single-side power generation or a solar cell with double-side power generation. The barrier layer is arranged on the surface of the antireflection film layer on the back surface of the solar cell, so that diffusion of metal can be effectively blocked, the reliability of the low-silver-con