A method and an apparatus for reducing delay in enhanced multimedia broadcast multicast services (eMBMS)-based group communication are provided. The method includes receiving the user packet, including information of a time stamp assigned by a broadcast/multicast service center (BM-SC), from the BM-SC, and transmitting the user packet to a terminal through a physical multicast channel based on information of the time stamp, wherein the time stamp is assigned at an interval set to a value less than a multimedia broadcast multicast services (MBMS) scheduling period.