Abstract: The distribution and diversity of scleractinian coral resources in the eastern sea of Shenzhen were investigated with boundary survey and belt transect method, and the health status of the community ecosystem was evaluated for the first time. Results showed that there were 37 dense regions of scleractinia coral communities in the eastern sea of Shenzhen, with a total area of 193.73 hm², of which 23 were key distribution areas. A total of 67 species of scleractinia corals were recorded and they can be divided into 13 families and 1 incertae sedis, 25 genera. Porites lutea, Platygyra carnosus and Montipora peltiformis were the top three dominant species. The average coverage was 37.58%, with the highest at site 16 (57.33%) and the lowest at site 2 (14.89%). The average mortality rate was 8.23% and the average recruitment was 3.66 ind. per square meter. The average of Margalef (d), Shannon-Wiener (H′), and Pielou (J) indexes of scleractinia corals were, 5.32, 2.71 and 0.81, respectively. The average health index of E-gong bay, Dalu bay, Xichong-Dongchong and Yangmeikeng bay was 89.38, indicating a healthy state, and Meisha-Xichong, Daao bay and Maowei bay sea area were 70.00, 70.50 and 73.00, respectively, indicating a sub-healthy state. This survey segguests five countmeasures, such as planning and layout, formulate corresponding protection and restoration plans, setting up monitoring sites, strengthening research and establishing restoration demonstration areas and linking the public and society to popularize science. The study can provide references for scleractinia coral community ecosystem protection, management, restoration, reconstruction and sustainable development.