1. As a method for performing a service search in a first wireless device supporting a Wi-Fi Direct service, the method for performing a service search comprises: transmitting a probe request frame including a hash value; receiving, from a second wireless device, a probe response frame including first service information corresponding to the hash value; transmitting a service search request frame including a search word to the second wireless device; and receiving, from the second wireless device, a service search response frame including second service information corresponding to the search word, wherein, if a preset symbol is attached to the search word, the second service information includes at least one service name having the search word as a prefix.