[Objective]To explore the original appearance of the Baizhu Fuzi Decoction in Jingui Yaolue and Jinxiao Zhufuzi Decoction,and to clarify the relationship between them,with a view to better carry out further related research and utilization work.[Methods]Based on the perspective of proofreading,the documentary proofreading methods of collation,self-proofreading,other-proofreading,rational-proofreading,induction and deduction were applied.Besides,the reasons for its evolution were discussed from the perspective of history.[Results]From the perspective of proofreading,the Baizhu Fuzi Decoction is not the same as the Jinxiao Zhufuzi Decoction.The dosage of the former formula should be double of that in DENG Zhen's version of Jingui Yaolue,while the latter formula is in fact identical to ZHANG Zhongjing's Gancao Fuzi Decoction.Based on the analysis of historical perspective,the two formulae were confused for three reasons:the similarity of their names,the"inadvertent"mistake made by officials of the Song Dynasty,the"assist"from DENG Zhen in Yuan Dynasty.[Conclusion]The original appearance of the Baizhu Fuzi Decoction in Jingui Yaolue and Jinxiao Zhufuzi Decoction has been clarified,which can be used as a reference for further related research and utilization work.