Aim: To explore the trend of diabetes epidemic characteristics in Beilun District of Ningbo, China and to provide basis for further improvement and improvement of diabetes prevention and treatment program. Methods: The data of chronic disease monitoring information management system in Zhejiang Province were collected, and the data of diabetes monitoring in Beilun District of Ningbo, China from 2012 to 2018 were compared and analyzed. Results: Compared with 2012-2015 years, the incidence rate of diabetes in this area was well controlled in 2016-2018 years, from 738.35/100 thousand to 538.27/100 thousand (P < 0.05). The proportion of type 2 diabetes decreased from 88.36% to 83.09% (P < 0.05). Among them, the increase of diabetes incidence rate was controlled in the 20 - 39 year old age group. The incidence rate of diabetes increased again in the 10 - 19 year old group, while the proportion of gestational diabetes mellitus was still on the rise. The proportion of people with diabetes mellitus with Abnormal BMI (body mass index) increased year by year. Conclusion: The incidence rate of diabetes in this region is related to the preferences of diet and lifestyle in 2012-2018 years. Among them, BMI is a risk factor for many chronic diseases. The incidence rate of BMI abnormal diabetes mellitus is increasing year by year, and some preventive measures need to be taken.