A digital contents superdistribution and transmittance method through the digital contents download services including accessing a server providing digital contents download services via a communication network to make payment for digital contents on the server, and receiving a download of the digital contents on which a security code is set; distributing the downloaded digital contents for which payment has been made to another user; executing the digital contents on the another user's computer, and accessing the server automatically via a communication network; and if the server is accessed and payment is made for the digital contents by the another user, offering a predetermined compensation to the user that has received the download. Accordingly, those who properly receive a download of digital contents can re-distribute the digital contents, and digital contents distribution can be promoted by offering a predetermined portion of profits resulting from the distribution. Furthermore, compatibility with the conventional distribution mechanism for encrypted digital contents can be achieved.