The disclosure relates to a communication technique for convergence between an IoT technology and a 5th generation (5G) or pre-5G communication system for supporting a higher data transmission rate than a 4G system such as long term evolution (LTE), and a system thereof. The disclosure may be applied to intelligence services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail businesses, security and safety related services, etc.) based on a 5G communication technology and an IoT-related technology. According to various embodiments of the disclosure, a method and an apparatus for supporting a sidelink relay discovery in a wireless communication system may be provided.