Abstract: Objective To analyze the epidemic trend of notifiable communicable diseases in Huairou district from 2004 to 2009, and provide scientific evidence for the development of communicable diseases prevention and control strategies. Methods Statistical analysis was conducted on the reporting data of class A, B and C communicable diseases in Huairou district during this period. Results A total of 12 192 cases of 14 class B communicable diseases and 8 class C communicable diseases were reported with the average annual morbidity of 582.73/lakh, mortality of 0.62/lakh and case fatality of 0.11%. The major diseases included other infectious diarrheas, bacillary dysentery, hand foot and mouth disease, viral hepatitis and tuberculosis. Conclusion It is necessary to strengthen the prevention and control of common communicable diseases with high incidence and pay close attention to the emerging of novel communicable diseases.