The invention discloses a novel low-voltage power grid model based on business fusion. The method is applied to new technologies and new equipment in modern power distribution networks. Actual requirements (including net rack topological connection, equipment management, data information interfaces, net rack analysis, tense management and the like) of low-voltage power distribution services are combined; through low-voltage equipment patterning, low-voltage equipment information database construction, formation of a low-voltage equipment integrated module and establishment of a low-voltage power grid topological relation completion model structure, a novel low-voltage power grid model is created, the actual situation and the development trend of a low-voltage power grid are considered, a foundation is provided for development of a power grid geographic information system for developing a low-voltage power grid module, and therefore the planning, construction and management levels of the low-voltage power grid are improved, and the service working efficiency is improved.