Indication method, system and apparatus for group handoff

The embodiment of the invention discloses a method for indicating group switching. The method comprises the following steps: a mobile station MS receives a switching indicator transmitted by a base station BS; and according to the switching indicator, after the group switching operation is confirmed to be carried out, the MS transmits a confirmation message to the BS to respond the switching indicator. Through the adoption of the method, the BS indicates the MS to carry out the group switching operation through the switching indicator, thereby providing a mechanism by which the MS can be switched among different groups in the BS service, and being capable of supporting the switching operation of the MS among different groups in the BS service.