Abstract: Objective To evaluate the quality of notifiable communicable disease network direct reporting in Jiangsu province from 2006 to 2009. Methods The surveillance data obtained from national disease reporting information system were used to analyzed the indicators of untimely reporting rate, untimely verifying rate, re-reporting rate, zero/miss reporting rate (in county/district) and comprehensive index in Jiangsu by using SAS software. Results A total of 843 046 reporting cards of notifiable communicable diseases were submitted during this period, 65.79% of which came from hospitals. Totally 11 597 cards were not submitted timely, the untimely reporting rate was 1.38%, and 873 cards were not verified timely, the untimely verifying rate was 0.10%. Zero/miss reporting of communicable disease was found in 6 counties (district), the zero/miss reporting rate was 1.33%. The comprehensive index was 0.70%. The interval between diagnosis and verifying reporting card of communicable disease decreased from 2006 to 2009, averagely 0.49 day. Compared with 2006, the interval between diagnosis and reporting decreased by 0.24 day (0.63-0.39 day) and the interval between reporting and verifying decreased by 7.20 minutes (40.32-33.12 minutes) in 2009. Conclusion The overall quality of communicable disease network direct reporting was improved by years in Jiangsu, but the regional difference on reporting quality was found. The reporting quality in southern Jiangsu was better than that in middle area. It is necessary to further strengthen the management and supervision of communicable disease network direct reporting, to improve the quality of communicable disease reporting.