Under the background of actively building a world-class tourism area in the Guangdong-Hong Kong-Macao Greater Bay Area（GBA） and promoting “One Belt And One Road” with regional tourism cooperation policy supports，the assessment of destination image level of GBA plays an important role in the construction，promotion and dissemination of the overall tourism image of GBA. In this study，a questionnaire survey method was adopted to investigate tourists and local residents. The research team collected a total of 2137 valid questionnaires in Hong Kong，Macao and the four cities in Guangdong province—Guangzhou，Shenzhen，Zhuhai and Zhongshan.This study finds that the assessment levels of tourists and residents on tourism image of GBA cities are uneven，and there are some significant perception biases between them. By this，it puts forward targeted measures and communication strategies for the construction and improvement of tourism image，which can provide decision-making guidance for the integrated shaping，promotion and external communication of GBA tourism image.