A method for providing a digital product according to the present invention comprises the steps of: receiving a request to provide a digital product of a digital product providing server from a terminal of a user; obtaining a login server user identifier of the user for a unique application identifier by logging in to a login server using the unique application identifier; storing digital product providing information in a database in association with the login server user identifier on the basis of the request to provide the digital product of the digital product providing server; and transmitting the digital product providing information to the digital product providing server in association with the login server user identifier, thereby being able to conveniently provide the digital product by synchronizing a user account.