The invention discloses a method, user equipment, and a system for realizing continuity of multimedia broadcast and multicast service (MBMS). The method comprises that: when UE which is receiving or being interested in receiving MBMS moves, and when the UE is in an idle mode, the UE selects target cells having the same frequency with the MBMS and carries out cell reselection; or when the UE is in a connection mode, network side selects the target cells having the same frequency with the MBMS according to a receiving status reported by the UE and switches. MBMS experience of users can be improved by adopting the method, the user equipment, and the system of the invention.