Method for printing solar cell step by step and solar cell

The invention discloses a method for printing a solar cell step by step and the solar cell, and relates to the technical field of solar cells. A method for printing a solar cell step by step comprises the steps that first printing is conducted, and a back electrode is formed on the back face of the cell; performing second printing to form a back electric field on the back of the cell; third printing is carried out, a first printing pattern is formed on the front face of the battery, and the first printing pattern comprises welding spots; fourth printing: forming a second printing pattern on the front surface of the battery, the second printing pattern comprising an auxiliary grid, a fine main grid and a fish fork; the fine main grid, the fish forks and the welding spots form a main grid, the welding spots are distributed on the fine main grid, and the fish forks are arranged on the edges of the two ends of the main grid. According to the invention, the thin main grids in the main grids have better shaping and