Hong Kong’s Convention and Exhibition Industry has a high degree of marketization and internationalization，which ranks the leading position in Asian trade fairs，and drives the development of trade service industry. Its tourism industry has the advantages of ownining shopping paradises and theme parks while integrating eastern and western culture，which attracts a largest number of international and mainland tourists. The hotel industry has a high rent and high occupancy rate，and the number of hotels increases rapidly. It is suggested that Guangdong-Hongkong-Macao Great Bay Area should jointly develop convention and exhibition industry and tourism industry，thus to create an international business environment and become the preferred destination for global MICE Tourism.