In 2020，COVID-19 will bring a strong impact on international trade and reshape the development mode of the exhibition. China International Trade Fair for Services（CIFTIS），ZGC Forum and Financial Street Forum three major brands have convergence of global resources，the exhibition show play the important role of capital，in 2020，the three major brands exhibition adopts “online and offline” mode of exhibition，promote cultural service trade in different degrees. This paper discusses the direct and indirect effects of the three brand exhibitions in promoting trade in cultural services，the advantages，problems and challenges of the three brand exhibitions as a platform for trade in cultural services. Finally，it puts forward policy suggestions on how to better play the role of the three brand exhibition platforms in promoting the development of trade in cultural services between Beijing and the world.