“…The basic idea of DEA is to each unit to be assessed as a DMU, again by many DMU constitute the group evaluation, through the comprehensive analysis of input and output ratio, DMU each input and output index weights for variable operations, determine the efficient production surface, and according to each DMU and efficient surface distance state to determine the DMU is DEA efficient, and gives various meanings of evaluation index. DEA is widely used in production [2] [3], finance [4] [5], business [6] [7], research & development [8] and other fields [9] [10]. The better results have been obtained by providing a scientific basis for decision makers.…”