Abstract: ObjectiveTo analyze epidemiological characteristics of causes of death among residents living in Beihai City. MethodsDeath data of residents in the national death cause surveillance sites in Beihai were collected from the Population Death Registration and Management System in China Information System for Disease Prevention and Control during 2014 to 2015. The epidemiological characteristics of death were determined by use of indicators of mortality, constituent ratio, rank of death causes, average potential years of life lost (PYLL).ResultsA total of 15 123 deaths were reported in 2 517 109 residents cumulatively monitored in two surveillance sites from 2014 to 2015, with an average annual mortality rate of 600.81 per 100 000 and a standardized mortality rate of 538.76 per 100 000. The top five leading causes of death were malignant tumor,respiratory system disease, cerebrovascular disease, cardiac disease, injury and poisoning, accounting for 89.50% of the total deaths. The leading causes of death were perinatal diseases for the group aged 0-4 years (24.52%), injury for the group aged 5-14 years (52.43%), poisoning for the group aged 15-44 years ( 38.31%) , malignant tumor for the group aged 45-59 years (52.10%), and respiratory system diseases for the group aged 60 years and over (26.04%). The average PYLL were 4.10 years for respiratory system diseases, 3.88 years for malignant tumor, 3.11 years for cerebrovascular disease, 2.35 years for cardiac disease , and 1.30 years for injury and poisoning.ConclusionChronic diseases were the leading causes of death of residents in Beihai and corresponding prevent and control measures should be taken to improve the health level and life expectancy of the residents．