Objective To Summarize the rule of Chinese medicine prescription in treating dermatomyositis.Methods Collected the Chinese medicine literature on dermatomyositis treatment from CNKI from January 1986 to December 2016

setting up a database. Used Excel 2010 and Access 2010 to analyze the statistics in the database.Based on the syndrome differentiation types

explores the medication rule including frequency of Chinese herbs and herb pairs used in dermatomyositis treatment. Results Totally 72 prescriptions and 243 herbs were included.According to the prescription and herbs used in ten syndrome types of five Zang-organs

the using frequency of all herbs is 3886 times. Then

the researchers formed the network demonstration of the commonly used drugs

medication pattern

medication rule and the herbal association for the treatment of dermatomyositis. The most commonly used five herbs in treating dermatomyositis are Huangqi [Astragalus mongholicus ]

Fuling [Poria cocos ]

Sheng Dihuang[Radix rehmanniae]

Danshen [Salvia miltiorrhiza]

and Baizhu [Rhizoma Atractylodis]. The top five herbs in treating spleen deficiency syndrome are Baizhu

Huangqi

Fuling

Chaihu [Radix bupleuri]

and Danggui [Angelica sinensis]. Conclusion Spleen deficiency syndrome is the main type of dermatomyositis that is often dominant through the whole process of the treatment; Prescriptions functioning spleen-qi tonification were frequently used in combination with those for clearing heat

activating blood circulation and removing stasis.