In three different states of the distribution network operation mode， the operation state， the maintenance state and the fault state， there will be different problems to solve， and there are different optimization objectives each requiring optimization calculation of the operation mode. To comprehensively evaluate the equipment operation， technology and economy of the distribution network， an analytic model based on the analytic hierarchy process（AHP） method is developed， the comprehensive evaluation indices of the normal operation state， the fault state and the maintenance state are obtained through the table of decision vectors of scheme properties and the matrix of properties weights. The model is applied in three different states of distribution network operation mode optimization objectives and a multi-objective optimization of distribution network operation mode calculated with the genetic algorithm is presented. An improved IEEE 69-node distribution network example is used to prove the feasibility of the proposed indicators and optimization method.