Abstract: Objective To understand the performance of notifiable communicable diseases reporting in Tonglu county and provide evidence for the improvement of the reporting quality. Methods Based on National Protocol of Supervision and Inspection of Communicable Diseases Network Direct Reporting Quality (2009 edition), the survey and analysis were conducted on the communicable diseases reporting quality in the medical institutions in Tonglu county in 2010. Results The miss reporting rate was 5.57%, the timely reporting rate was 100%, the complete rate of reporting cards was 90.96%, the consistent rate of paper cards and electronic cards was 92.66%, the diagnose accordance rates of virus hepatitis and bacillary dysentery were 88.16% and the awareness rate of knowledge about communicable disease reporting among medical personnel was 82.19%. The differences on all indicators between county medical institutions and township medical institutions had statistical significance except the consistent rate of paper cards and electronic cards (P0.05). The miss reporting rate in county medical institutions was lower than in township medical institutions, but the completed rate of reporting cards, diagnose accordance rate and awareness rate of communicable disease reporting knowledge in county medical institutions were higher than in township medical institutions. Conclusion Much effort should be made to reduce the miss reporting rate, improve the complete rate of reporting cards and diagnose accordance rate and increase the awareness rate of communicable disease reporting knowledge in medical institutions in Tonglu, especially those at township level.