The family group food storing territories of Microtus brandti are analyzed in 4 different grazing habitations: light-grazing,middle grazing, over-grazing, and serious-grazing. Significant differences have been detected in the food-storing-territory of M. brandti in various habitations with ANOVA. The food-storing-territory and vegetative biomass has exhibited an apparent negative correlation. This may be considered an adaptation of M. brandti to the variable environment.