Abstract: This paper improves the data structure of the simplified distribution network model to reduce storage space. For the first time, this paper applies the constraint satisfaction model to the load balancing network distribution network reconfiguration problem, establishes the load balancing constraint condition, proposes a load balancing index suitable for the constraint satisfaction problem. The distribution network reconstruction problem is presented as mathematical problem with the objective function of minimizing the load balance index. Specific examples of verification prove the feasibility of the method.