Abstract: Objective　The study was conducted to evaluate the quality of network reporting of notifiable infectious diseases in Diaobingshan city from 2004 to 2007, providing evidence for the development of management of infectious disease. Methods Reporting cards of infectious diseases, obtained from the Disease Surveillance Information Reporting Management Subsystem of China Disease Prevention and Control Information System, from 2004 to 2007 were exported as Expel spreadsheets for statistical analysis. Only audited (as checked in the review column) cards were analyzed. Results　From 2004 to 2007, the average rate of duplicated network report of infectious diseases reached 5.98% in the city, the duplication rate being 4.02%,5.41%, 7.49%, and 8.30% in respective year. Hepatitis B was mostly duplicated in the report cards, and the highest duplication rate was shown in hepatitis C, leading to changes in the ranking of the incidence of infectious diseases.Conclusion　Training on network direct reporting was needed for practitioners and doctors responsible for card filling. Since the accuracy of the network reporting data and the sensitivity of the reporting system was mostly affected by HBV, HCV and tuberculosis cases, the improvement of management of chronic infectious diseases, standardization of epidemic reporting and specification is therefore desired. Meanwhile, enforced reporting of the system shall be advanced to ensure the feasibility of the above standards and specifications.