The invention relates to a method and server associating a sweeping robot with a terminal, and a system. The method comprises: a server receives a second redirection connection request from a public platform; on the basis of the second redirection connection request, second correspondence information containing an identifier of a sweeping robot and an identifier of a second terminal is obtained; after the public platform receives confirmation information from a first terminal, an association relation between the sweeping robot and the second terminal is established based on the second correspondence information, wherein an association relation between the first terminal and the sweeping robot has already established. With the method and server, and the system, the association relation between the sweeping robot and the terminal can be established under the circumstances that the structural complexity and cost of the sweeping robot are not increased much; and when association relations between multiple terminals and the sweeping robot are established, safety is improved.