Method, system and treminal for user plane location and location server

A method, system and terminal for user plane location and a location server are disclosed in the invention. The method includes that: after a data connection between a terminal and the location server which the terminal belongs to is established, the terminal sends a location request about a third party terminal to the location server (301); the location server receives and processes the location request, and sends to the terminal a response message with a location request processed information before a location result is obtained (302); the terminal receives the response message (303). The invention can improve the user service experience.