Platform has become the most popular organization form in the industrial practice. Despite increasing research on platform, controversy between platform context view and platform theory viewremains, making the long-term development of platform research difficult. This paper uses the method of bibliometrics and content analysis to clarify the controversy by objectively combing and presenting the current situation of domestic and foreign platform research. The Citation Clustering Analysis shows that platform research has evolved from product development platform and two-sided market platform to strategic innovation platform. Although the three major schools focus on the different issues, use different theoretical perspectives and research methods, the Co-word Analysis shows convergence of different schools. Based on the three judgments of “what is theory”, platform attributes, platform issues and platform modeling, this paper finds that “platform theory” research academic community is forming. The future platform research should firmly grasp the key character of multi-sides architecture and network effect, and carry out dialogue with the classical theory to deepen the platform theory framework. This study attempts to buikl a three level framework in cluding platform organization, platform ecosystem and platform institution enrironment. Combining the development of industrial practice of China, the future research may focus on the platform of organizational boundaries, platform envelope strategy and business model innovation, platform enterprise innovation ecosystem management, platform organization-led institutional entrepreneurship and other research areas.