The disclosure relates to a communication technique and a system thereof for fusing, with IoT technology, a 5G communication system for supporting a higher data transmission rate than a 4G system. The disclosure may be applied to intelligent services (such as smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail business, and security and safety related services, etc.) on the basis of 5G communication technology and IoT related technology. The disclosure may provide a method for setting the monitoring of an application server (AS), the method comprising the steps of: transmitting, to a service capability exposure function (SCEF), a first message which comprises information on an identifier, which indicates a group including a plurality of terminals, and a waiting time and instructs to report monitoring information on the group including a plurality of terminals; and receiving, from the SCEF, a second message comprising the monitoring information on the group of a plurality of terminals.