Disclosed are a dynamic access method of a mobile front end, a mobile front end and a video surveillance platform. The method includes that a mobile front end acquires location information of the mobile front end and sends the location information to each video surveillance platform of a Video Surveillance System (VSS); each video surveillance platform judges whether to allow all the mobile front ends to access according to a preconfigured administration scope and the location information sent from the mobile front end; and the mobile front end completes an access process with the video surveillance platform which allows it to access. When being powered on, the mobile front end can determine to access a video surveillance platform to which it belongs according to the geographic location where it is located; and when being moved to the area of other video surveillance platforms, the mobile front end can automatically negotiate to access a corresponding video surveillance platform.