With the advent of the digital economy era, big data technology has become an important driving force in the field of e-commerce, profoundly affecting the development and innovation of e-commerce platforms. This paper analyzes the importance and role of big data technology in the development of e-commerce platforms, discusses the development strategies of e-commerce platforms supported by big data technology, including the basic principles and goals of e-commerce platform development, the architecture design of e-commerce platforms based on big data technology, and the functional modules and development process of e-commerce platforms. In order to promote the continuous development and innovation of e-commerce platforms driven by big data technology, several recommendations are proposed, including precision marketing and personalized recommendations, intelligent customer service and after-sales services, supply chain optimization and inventory management, data security and privacy protection. It is hoped that the results of this paper can provide reference and inspiration for practitioners and researchers in the e-commerce industry, and promote further development and innovation of e-commerce platforms in the era of big data.