According to the theory of "one

qi

circumference"， it is believed that

qi

movement disorder of

zang

-

fu

organs and dysfunction of

qi

transformation are the pathogenesis of rheumatoid arthritis （RA）.

Zang

-

fu

organs disorder is caused by spleen-stomach depletion and dampness pathogen obstruction， while

qi

transformation dysfunction is due to spleen-kidney

yang

qi

depletion. For treatment， it is recommended to put focus on regulating

qi

movement of

zang

-

fu

organs， and promoting

qi

transformation. In clinical practice， the method of fortifying spleen and removing dampness can be used to restore ascending and descending function of the center， with

Shengyang Yiwei Decoction

（升阳益胃汤），

Sijunzi Decoction

（四君子汤），

Shenling Baizhu Powder

（参苓白术散） in their modifications. The method of supplementing and replenishing liver and kidney can be used to unblock the ascending path of

qi

movement， with

Buxue Rongjin Pill

（补血荣筋丸），

Duhuo Jisheng Decoction

（独活寄生汤），

Dabuyin Pill

（大补阴丸），

Liuwei Dihuang Pill

（六味地黄丸） in their modifications. To unblock and regulate the downward path of the waterway， it is advised to diffuse lung and direct

qi

downward using

Guizhi Decoction

（桂枝汤），

Mahuang Decoction

（麻黄汤） in their modifications. To restore

qi

transformation function of

zang

-

fu

organs， the method of warming and tonifying spleen and kidney is recommended with formulas such as modified

Sini Decoction

（四逆汤） and

Shenqi Pill

（肾气丸）.