This research aims to establish an optimal information base conducive to the development of an E-Commerce platform within modern socio-economic systems, operating amidst global digitalization and within legal constraints. The primary scientific task involves modeling information to facilitate the growth of such an E-Commerce platform in these evolving systems. The focus of this study is on modern socio-economic systems existing within the realm of global digitalization. The adopted research methodology, pertinent to the subject matter, encompasses SWOT analysis and graphical-functional modeling, utilizing a contemporary methodological approach in the formation of an information model. As an outcome, this study offers a fresh perspective on the model of information support for the development of an E-Commerce platform within the contemporary socioeconomic systems navigating through the waves of global digitalization. The novelty of these findings lies in the defined methodological approach towards constructing an information model for E-Commerce platform development. However, this study is limited by its exclusive focus on the information component, potentially leading to the neglect of other crucial elements of E-Commerce, such as financial, security, technical, and technological aspects. Future research should prioritize developing parallel models for these key E-Commerce components and optimizing them in alignment with the existing model.