Abstract: Amidst the rapid development and refinement of digital technology systems, capitalist communication practices, centered around information production, transmission, reception, and interpretation, have undergone profound transformations. The communication system notably demonstrates extensive economic attributes that transcend mere information exchange and ideological realms, increasingly assuming a more critical economic function within contemporary capitalist modes of production. From a politicaleconomic perspective, the capitalist digital communication system fulfills its economic roles within the structure of capital accumulation through five distinct mechanisms: material production, immaterial production, capital circulation acceleration, the intensification of exploitation and inequality, and the reproduction of mainstream ideologies. The Western digital communication system remains incapable of overcoming, and will continue to exacerbate, the inherent contradictions and crisis tendencies embedded within the modes of capitalist production.

Key words: digital communication system, economic function, mechanism of action, contradictions and crises

摘要： 在数字技术体系高速发展完善背景下，以信息生产、传输、接收和解读为主要过程的资本主义传播实践产生了重大变革，传播体系显著表现出超越信息交互和意识形态领域的广泛经济属性，越来越在当代资本主义生产方式中承担更为重要的经济功能。在政治经济学视角下，资本主义数字传播体系通过物质生产、非物质生产、资本循环促进、剥削和不平等加剧、主流意识形态再生产五种不同作用机制，在资本积累结构中承担经济功能。西方数字传播体系仍无法克服并将不断加剧资本主义生产方式的固有矛盾和危机趋势。

关键词: 数字传播体系, 经济功能, 作用机制, 矛盾和危机