This report summaries the relationship between Cantonese culture and the development of Guangdong-Hong Kong-Macao Greater Bay Area and explores the role of Cantonese culture in the cultural integration of the greater Bay Area. Considering the current opportunities and challenges，this paper examines the overall path and the specific paths of various cultures，implements the ideas of “bringing in” and “going out”，and explores innovative ways to disseminate Cantonese culture so as to enhance the cultural consciousness and cultural confidence of the people in Guangdong，Hong Kong and Macao. In the context of the Bay Area cultural exchange，such approach will help Cantonese culture to go abroad and prosper.