There is a difference. E-commerce and e-commerce both refer to the way of using the Internet to conduct commercial activities. Generally speaking, e-commerce is a broader concept, including any way of using electronic channels to conduct commercial activities, such as email marketing, social media marketing, online advertising, etc., while e-commerce usually refers to online shopping platforms, such as Taobao, JD.com, Amazon and other e-commerce websites. Therefore, e-commerce is a subset of e-commerce.

E-commerce is the abbreviation of e-commerce, and the two can be equated. If there is a difference between the two, it can only be understood from a popular perspective. E-commerce can be understood as e-commerce platforms such as Taobao, JD.com, Pinduoduo, and their practitioners, while e-commerce is an industry, including logistics, customer service, sales, technology and a series of other projects.