This invention relates to a method for getting radio network topological information and a system, in which, the method includes the following steps: scanning radio devices in the radio network to get physical topological information, configuring logical topological information of radio devices to obtain network topological information according to the physical topological information and the logical topological information, thus, it's not necessary to get network topological information by some specific information such as port numbers and provides rich network topological information to be used in background topological display. |