The embodiment of the invention discloses a map information push method and device. The map information push method and device can be applied to a server. The method includes the following steps that: the position information of a first terminal is obtained, and whether the position information of the first terminal, compared with the original position information of the first terminal in the database of a server, changes, is judged; and if the position information of the first terminal changes, the original position information of the first terminal in the database of the server is updated, and the position information of the first terminal is pushed to a second terminal, so that so that the second terminal can update the display position of an image identifier corresponding to the first terminal on the map of the second terminal. According to the map information push method and device, after obtaining the position information of the first terminal, the server can timely push the position information of the first terminal to the second terminal as map information, so that the second terminal can synchronously display the position of the other terminal, and therefore, original isolation states between users can be eliminated, and information sharing can be realized between the users.