We evaluated the effects of foraging-trip distance and social group sizes on the amount of single trip' s food collection of the Brandt’s vole(Lasiopodomys brandtii) during the food storing period in typical steppes in Xilingol League, Inner Mongolia. Wheat(Triticum aestivum) was provided as supplemental food at food stations in different distances to the center of burrow systems to measure the amount of food collection of Brandt’s voles on each single foraging trip. We manipulated the group size of the voles from 3 to 11 individuals, and foraging-trip distance from 5 to 30 meters in this study. The vole can carry about 8.0 wheat seeds on average on each foraging trip. Results show that the amount of food collection of Brandt’s voles was not related to either foraging-trip distances or group sizes. Moreover, there was no direct interaction between foraging-trip distance and group size.