In this thesis, we examine how Information and Communication Technologies (ICTs) have developed in China based on historical specificities, the role of the State and private technology companies structured within a platform economy model, considered a strategic sector for the modernization policy deployed by the Chinese State. This research is situated in the subfield of the Political Economy of Communication (PEC) context, which derives from the Critique of Political Economy, which in turn, due to its transversal nature across different fields of Social Sciences, it can provide important tools to understand communication and cultural phenomena in the new configurations of information societies. The objectives of this work are to reconstruct the path of development of Information and Communication Technologies (ICTs) in China in the 20th and 21st centuries, and to examine their economic and politic impacts. Additionally, the study will analyze how Chinese big techs and their global versions are structured, their characteristics, and how such private companies relate to the State. In this research, we use bibliographic research and documentary analysis as methodological procedures, contemplating literature that allows us to look at China from its imperial and revolutionary experience, as well as conceptual discussions on platforms and the process of embedding digital structures in everyday life, called platformization. Document analysis allowed us to map the state of platformization in China, the challenges, the tensions, and how this articulates within the new wave of technical progress with direct consequences on production dynamics and capital accumulation. We conclude that although the development of ICTs has led China to challenges similar to those faced by Western countries, such as the formation of platform company monopolies, whose business models are supported by massive data collection and analysis, there are important specificities that do not allow a mere reflection of Chinese platform structures with Western ones, notably American ones. Having initially taken inspiration from North American platforms, the Chinese have taken advantage of gaps within the Chinese organization to develop arrangements that are absolutely particular at the social, economic and political levels.