By sorting out Guangdong-Hongkong-Macao Great Bay Area convention and exhibition industry policy，economy，society，technology，and talent environment in 2019，reviewing the development status of exhibition industry in three places，outlining the Bay Area and further optimizing the structure of the exhibition industry，complementary advantages and initial results，the supply scale of exhibition hall continues to increase business competition，intensity industry business environment continuous optimization and other development status，showcast the opportunities and challenges for the development of the convention and exhibition industry in the Bay Area，thus to give a series of countermeasures and suggestions from the top-level design to the development path.