This report compared the Guangdong-Hong Kong-Macao Great Bay Area （GBA） with other three world-class Bay Areas—New York Bay，San Francisco Bay and Tokyo Bay area on tourism development from four aspects，which are the tourism products，tourism market and image，tourism industry and tourism talents cultivation. It is found that the Greater Bay Area has certain characteristics and advantages to attract global tourists with theme parks，mice tourism and cultural landmarks as the core attractions. In terms of the overall scale of the tourism industry，the GBA has surpassed the other three Bay Areas，but there is still a big gap between the GBA and other Bay Areas as for the richness of the tourism products and the influence of individual products. The tourism service quality of the GBA has not yet reached the international standard and there are needs to be improved. Currently，the international tourism market has not paid enough attention to the GBA，and the reception capacity of foreign tourists in this area still needs to be improved. However，cities in the GBA are full of vitality，with a large number of young innovative talents and strong innovation capacity. With the eastward shift of global tourism market and the scientific and technological revolution，the GBA is expected to cultivate world-class tourism products and establish the brand image of the Bay Area as a world-class tourist destination.