First of all, the research progress of removing B and P impurities in halosilane system is introduced, and the main methods, results and findings of the relevant researches at home and abroad are summarized. Secondly, the present status of the research on the process of removing B and P impurities from the halosilane system is analyzed, and the advantages and applicability of various methods at home and abroad are also summarized.. Finally, the research on the removal of B and P impurities in the halosilane...