The invention discloses a power distribution network plan method based on marketing and distribution information integration. The method comprises the steps of 1), integrating power distribution network plan basic data; 2), mapping power distribution network device and marketing customer information; 3), establishing a plan uniform device model; 4), analyzing current situations of a power network; 6), making a plan scheme; and 7) evaluating the plan scheme. The method has the beneficial effects that through marketing and distribution information integration, data required by a power network plan is formed, information is automatically collected through data interfaces, data sources are unified, and the data quality is improved; the plan uniform device model is established, automatic calculation analysis is realized, a traditional mode of collecting the information manually and making the plan scheme artificially is replaced, the artificial information collection cost is reduced, the physical power of planners can be liberated, the brain power of the planners is released, the problem that the plan is difficult to make is solved, and the quality of the plan scheme is improved; and the simple and convenient information collection process facilitates the routinized plan making work, and the plan rolling editing and revision timeliness is improved.