A server is provided. The serve includes a publishing module, a program module, a relationship module, and a transmission module. The publishing module publishes digital content. The program module stores programs for playing the digital content. The relationship module stores a relationship between the digital content, a plurality of pre-stored hardware information of customer terminals, and programs for playing corresponding the digital contents corresponding to hardware information. The transmission module searches a particular one of the programs for playing a particular one of the digital contents in response to a request from a customer terminal for downloading the particular digital content. The particular program is corresponding to the hardware information of the customer terminal according to the pre-stored hardware information. The transmission module further transmits the particular digital content and the particular program to the customer terminal A customer terminal and a digital content transmission method are also provided.