A positioning method, a terminal and a server, and relates to the field of positioning and navigation, for performing accurate global positioning. The positioning method includes: a terminal sends a first global coordinate to a server, the server receives the first global coordinate from the terminal, the server searches for corresponding local map data and mapping parameters corresponding to the local map data according to the first global coordinate, the server sends the local map data and the mapping parameters to the terminal, and the terminal obtains a local coordinate of the current location according to the local map data and surrounding environment information of the current location, and obtains a second global coordinate of the current location according to the local coordinate of the current location and the mapping parameters. The embodiment of the present disclosure is applied to accurate positioning.