Abstract: In order to provide a data base for further calculation of grazing capacity of Chaganhada Town of Bairin Left Banner of Inner Mongolia and to render references for the deep investigation on grassland animal husbandry development status of this region, based on the data of livestock number and grassland area from 1949 to 2016, the variation of livestock number and average grassland area occupied by individual livestock in recent 67 years of this region was characterized. The results demonstrated that the livestock number of this region increased from 5 733 sheep units in 1949 to 201 326 sheep units in 2016, which was elevated by 35 times during the 67 years; the average grassland area occupied by individual livestock （sheep unit） reduced from 5.50 hm2/ sheep unit in 1949 to 0.15 hm2/ sheep unit in 2016, which was decreased by 97.3% during the 67 years. The combined data suggest that the grassland area of this region has reduced year by year, the grassland type exhibits a trend of xerophilization, and the livestock number had increased year by year, which results in increasingly high grazing pressure.