The invention discloses a method and device for realizing a multimedia broadcast multicast service (MBMS). The method comprises the following steps of: (1) receiving the MBMS and judging whether the ordered MBMS is released in a resident cell or not; (2) judging whether the ordered MBMS is a broadcast service or not; (3) receiving a multipath signal of the MBMS, performing a step (4) if a main receiver is switched on and an auxiliary receiver switched off, and performing a step (5) if both the main receiver and the auxiliary receiver are switched on; (4) if primary common control physical channel received signal code power (PCCPCH RSCP) is lower than a first threshold value, switching the auxiliary receiver on and performing the step (3), otherwise, directly the performing step (3); and (5) if the PCCPCH RSCP is higher than a second threshold value, switching the auxiliary receiver off and performing the step (3), and if the PCCPCH RSCP is lower than the second threshold value and notlower than a third threshold value, directly performing the step (3). In the method, the switch-on or switch-off of the auxiliary receiver of a double-receiver terminal is controlled according to thevalue of the PCCPCH RSCP, so that terminal receiving gain is increased, and the consumption of terminal equipment is lowered.