Payment is a crucial process in the financial flow of electronic commerce, and its development directly determines the success or failure of e-commerce. Electronic payment technology is the key to realizing online shopping and real-time payment. And with the vigorous development of e-commerce, the significance of logistics organizations has gradually become prominent. The key points of knowledge in this chapter include the following: online banking, electronic payment systems, electronic cash, electronic checks, the functions and characteristics of electronic wallets, and the development of supply chain research in e-commerce.