Visual presentation method and device based on dynamic expansion of power grid vector slice data

The invention discloses a visual presentation method and device based on dynamic extension of power grid vector slice data. The method comprises the following steps: querying slice extension attribute configuration; querying and matching to obtain power grid vector slice extension attribute data; combining the basic power grid vector slice data and the power grid vector slice extension attribute data to generate dynamically extended power grid vector slice data; and sending the dynamically expanded power grid vector slice data to terminal equipment, so that the terminal equipment calculates a rendering layer and visually displays the rendering layer in the power grid map. The associated customized attribute data is dynamically injected into the basic power grid vector slice data during operation according to the service type, so that the rendering and coloring requirements of different service maps can be integrated and adapted, the cleanliness of the basic power grid vector slice data is kept, the calculatio