Using grassland area

stock number

and productive expenditure as inputs and per capital annual net income

life expenditure

and grassland quality as outputs

we analyze 30 household pastures in Baiyinxile of Inner Mongolia by means of CCR

a model of data envelopment analysis(DEA)

and get the improved values of indicators.Results show that production efficiency is correlated with the grassland area possessed by households.The area of grassland less than 200 hm2 has high production efficiency.Under the assumption of no change in grassland quality

the two-level DEA validity suggests that the three input indicators decrease by 22.28%

21.83%

and 28.62%

respectively

and the first two output indicators increase by 0.78% and 0.91%

respectively.Moreover

the 1st DEA validity shows the three input indicators decrease by 49.86%

47.29%

and 60.79%

respectively

and the first two output indicators increase by 33.50% and 7.06%

respectively.Optimizing management and enhancing production efficiency in household level may play an important role in mining the potentials of household pastures and improving eco-environmental construction of natural grassland areas.