Based on the brief introduction about the concept and characteristics of digital products, some related packaging technologies of digital products are analyzed with the functions of goods packaging in merchandise as a clue. The protection function is the most important one for the packaging of digital products, its implementation technology include cryptograph, digital watermarking, authentication and authority management. The convenience of digital products is improved by the technology such as Human-Computer Interaction, data compression, file formats and format conversion, etc. The function of sales promotion for digital products can be improved with Search Engine Optimization. With the deepening of information technology, the packaging demand of digital products has been increasing, and there come new opportunities of development for packaging discipline.