The present disclosure relates to a communication technique for combining, with an IoT technology, 5G communication system for supporting a data transmission rate higher than that of 4G systems, and to a system thereof. The present disclosure may be applied to intelligent services (e.g., a smart home, a smart building, a smart city, a smart car or connected car, healthcare, digital education, retail business, security and safety-related service, etc.), based on a 5G communication technology and an IoT-related technology. An embodiment of the present invention relates to a method and device for paging a terminal by using a beam antenna.