The Plateau Zokor (Eospalax baileyi) is one of the dominant rat species of the Qinghai-Tibet Plateau and it has an important role in alpine grassland ecosystems. In this study, the zokors were captured by setting the 6 samples each year in the study area (Table 1); bodyweight, pregnancy rate and population density of Plateau Zokor ere chosen as the index of population features; normalized difference vegetation ondex (NDVI), the annual average precipitation and temperature from 2008 to 2014 (Table 2) were chosen as the environmental factors. The paper analyzed the relationship between population features of Plateau Zokor and environmental factors in order to clear influence of environmental factors on the population features of Plateau Zokor. The results showed that there was no significant difference on inter-annual NDVI (P > 0.05, Fig. 1) and bodyweight, pregnancy rate, population density year to year from 2008 to 2014 (P > 0.05, Table 3). With the development of time, the bodyweight of male and female, population density and pregnancy rate had not correlation with the environmental factors such as average annual precipitation and average annual temperature (P > 0.05, Fig. 2﹣7). The above results show that there were no correlation between bodyweight, population density and pregnancy rate of Plateau Zokor and environmental factors, which means the environmental factors had little influence on zokors′ population features.