This research is based on the phenomenon of how online buying and selling transactions, or E-Commerce, have become an integral part of the lifestyle of Indonesian society today. Despite the numerous benefits it brings, it cannot be denied that there are various limitations in E-Commerce that subsequently cause problems among users. Based on this situation, this study discusses the implementation of legal protection for consumers in online buying and selling transactions through Tokopedia, one of the e-commerce. To address the research question, the author employs the theory of agreements and the theory of legal protection. The method used in this research is normative legal research, or widely known as library research. Based on the conducted research, it can be concluded that the legal protection provided by the Indonesian government to the public as E- Commerce consumers is not yet strong. This is due to many hindering factors originating from the E-Commerce actors themselves, including consumers, sellers, and the E-Commerce platform.