The basic methods of proofreading mainly include: ① proofreading is a proofreading method according to the original manuscript, so that the contents such as words, symbols, charts and formulas on proofreading are completely consistent with the original manuscript and the layout meets the design requirements; (2) Collating refers to a proofreading method that finds problems and raises questions through mutual verification and comparison of the context of this manuscript, so as to correct mistakes. The characteristics of our school's method are that according to the internal relations of manuscripts, the catalogue is proofread with the text, context, text map, text list and text note, and the terms and concepts are proofread before and after; Pet-name ruby proofreading method is a proofreading method which uses other authoritative documents (including reference books and various standards and specifications) to judge whether it is right or wrong when there is doubt about the proofreading content. (4) Proofreading is a proofreading method to judge right and wrong through reasoning analysis. Item C, whose function is to solve puzzles, is usually used to solve problems such as quotation, data, facts, dates, idioms, terms and formulas. It is widely used in ancient books and scientific books and periodicals in schools.