This paper deals with the distribution of Oribotritia in Xinjiang grasslands,based on a systematical survey of the mites in 17 natural areas during the period of 1983 to 1989.By analysing and comparing the data on the count and population distribution of the mites from 987 spots,it has been found that the distribution of the mites has a regularity characterized by an unbalanced, regional, congregate, seasonal, and environment-dependent distribution.