The invention discloses a self-optimization routing system used in switch networking planning. The self-optimization routing system is suitable for a power distribution network with a plurality of micro grids, and comprises a measurement and control circuit breaker module arranged between a bus and a user network load, the measurement and control circuit breaker module comprises an electric energycollection unit and a load circuit breaker, the electric energy collection unit is configured to collect the first electric energy of the user load, the pull-in or the turn-off of the load circuit breaker correspond to the grid connection or cut-off between the user network load and the bus; a routing control module is arranged in the power distribution network, the signal collection end of the routing control module is connected with the electric energy collection unit, the output end of the routing control module is connected with the load circuit breaker, the routing control module is configured to build the electric energy routing network of the power distribution network according to the first electric energy and the attraction or the disconnection of the load circuit breaker, and the electric energy routing network is configured to transmit the electric energy in the power distribution network. According to the technical scheme of the invention improves the accuracy and the reliability of the load control of the load.