The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The method for processing a request for an emergency call comprises performing at least one of ignoring a reject cause received from a network, and providing highest priority to the emergency call in a call priority order defined for the UE after receiving the request for the emergency call.