Driven by digital technology and the Open Access (OA) movement, the scholarly publishing ecosystem is undergoing a profound structural transformation. The traditional subscription-based dissemination model, long dominated by commercial publishers, is being fundamentally challenged by Academic Social Networking Sites (ASNS). This paper explores the underlying mechanisms through which ResearchGate reshapes the scholarly communication ecosystem and analyzes its ecological impacts, evolutionary dynamics, and ethical challenges. ResearchGate’s disruptive influence is rooted in three core mechanisms: a professional academic network based on strict identity authentication, a unique “request full-text” feature, and algorithmic recommendation technology. Collectively, these mechanisms have triggered four paradigm shifts in scholarly publishing. First, they have facilitated the flattening of dissemination chains, transitioning from a rigid, linear hierarchical model (“author-journal-database-reader”) to a direct, decentralized social distribution model (“author-reader”). Second, they have driven the diversification of evaluation systems, challenging the hegemony of the Journal Impact Factor by introducing alt-metric indicators like the RG Score and read counts. Third, they have enabled the visualization of feedback mechanisms, transforming anonymous database access logs into traceable, identity-based data that allows authors to identify and connect with their readership. Fourth, they have achieved behavioral-value integration, whereby readers’ activities (reads, shares) directly generate social capital for authors, creating a continuous loop of value co-creation. Consequently, these shifts have triggered a migration of academic discourse power from traditional publishers back to the research community. However, this shift carries potential risks: the platform’s logic may drive the academic ecosystem toward implicit commercialization by monetizing user traffic and data, while alt-metric indicators risk devolving into utilitarian “social performance” if formally incorporated into evaluation systems. Furthermore, the lack of quality control over freely uploaded content remains a structural vulnerability. The relationship between ResearchGate and traditional publishers has evolved from zero-sum copyright conflicts to ecological symbiosis. This trajectory encompasses three stages: the confrontation phase, the cooperation phase, and the integration phase. In this hybrid symbiosis, publishers retain quality control and certification, while RG handles social dissemination and engagement, forging a “formal publishing + social communication” paradigm. Nevertheless, balancing the open nature of social sharing with intellectual property rights remains a persistent ethical challenge. Finally, considering these systemic transformations, this paper proposes strategic recommendations for Chinese academic publishing institutions to enhance their international influence. These include: expanding dissemination channels and deepening data collaboration by actively participating in RG’s Journal Home services; leveraging algorithmic mechanisms by optimizing copyright policies to authorize compliant author self-archiving; and capitalizing on node linkage mechanisms by identifying and engaging key scholars as “super nodes” to expand journals’ boundaries, transitioning from passive manuscript collection to proactive academic agenda-setting.