This paper revises Gyroweisia yunnanensis,an endemic species of China,based on the study of type and relative specimens.According to type characters,all specimens that have been assigned to G.yunnanensis are re-examined,so that the current distribution could be confirmed in Yunnan,Liaoning and Inner Mongolia,of which Inner Mongolia is a new geographic distribution.Description,detailed note and digital photograph are provided,and the type is refigured in drawing.This paper will provide new references to Pottiaceae of China.