E-commerce is the core technology of knowledge economy. Developing e-commerce is an inevitable choice for Chinese economy to enter into the world market, participate in and ultimately penetrate the global market, and bring about a great rejuvenation of the Chinese nation. We must grasp this business opportunity and further extend its strength by consciously
studying, applying and developing e-commerce; allowing e-commerce to serve better in society’s economic development. Before we can start developing e-commerce, we have to understand the background, the basic principle and the evolution and development history of e-commerce. This enables us to have a thoughtful understanding on this new technology, hence, helping to predict the trend of e-commerce in the near future. This chapter introduces some basic knowledge regarding to e-commerce, which includes, the needs of society, development of e-commerce, basic e-commerce concepts, and couples of other information which closely related to the development of e-commerce.