NOVELTY - The method involves separating the wafer from floor according to the resistivity property value of the semi-finished wafer measured in the characteristic test process based on solar cell manufacturing process. Each layer is processed to different cofired condition after separating the wafer from floor. The out-of-standard semi-finished product including N type diffusion process, the characteristic test process, the reflective film/electrode pasting process, plastic process and quality inspection process is discarded so that the quality of the working product is improved.    USE - Method of processing solar cell product in solar cell manufacturing system.    ADVANTAGE - The quality of the working product is improved by reducing the loss due to the discard of the out-of-standard semi-finished product including N-type diffusion process, the characteristic test process, the reflective film/electrode pasting process, plastic process and quality inspection process. The optimal cofired condition about each layer is provided after the semi-finished product wafer is separated from floor according to the resistivity so that the manufacture of the solar cell focusing the distribution of the generated current to the highest grade is uniform, Hence quality standard of the completed solar cell is improved. Since the resistivity standard range is expanded about the out-of-standard semi-finished wafer, the discard about the expensive material is minimized. The economic loss of the solar cell manufacturing process is prevented and hence the productivity of the solar cell manufacturing process is ultimately maximized.    DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart illustrating the solar cell manufacturing process. (Drawing includes non-English language text)    Step for forming ingot molding process (S100)    Step for processing wafer (S200)    Step for forming photoelectric transformation N-type dopant layer (S300)    Step for forming the front electrode layer and back surface electrode layer (S500)    Step for the sintering application progress and reflective film/electrode pasting process (S600)