A distribution network reconfiguration method with intuitive economic characteristics is proposed. Firstly, an optimal model, which has intuitive economic characteristics and takes both power loss and reliability into consideration, is established using the economic evaluation methods. Secondly, to calculate reliability of distribution network fast and conveniently, the component groups obtained by partitioning distribution network are described using the class in object-oriented ideas, and the tree structure of component groups is generated according to the topology of distribution network. Finally, biogeography-based optimization is applied to solve the proposed economic reconfiguration model. Reconfiguration results of IEEE16 bus system demonstrate the feasibility and applicability of the proposed approach.