Abstract: A method for providing fishing tournament management service may include steps of transmitting data to a plurality of mobile devices, wherein the data may display a fishing tournament-related display including information on fishing tournaments being prepared for opening and a registration menu; receiving applications through the registration menu and transmitting information on application receipts to the mobile devices through which applicants have registered; receiving information on captured fish when a fishing tournament is started, from the mobile devices, to check the species and length thereof; analyzing the information on captured fish, generating ranking information if the analyzed information on captured fish corresponds to the predetermined reference and then transmitting the ranking information to the mobile devices through which applicants have registered; and determining winners according to the ranking information when the fishing tournament is over and transmitting information including winne