More than 6.4 million infectious disease cases were reported on the Chinese mainland in 2013, the National Health and Family Planning Commission said in a statement.
Among the 3.1 million cases categorised as Class A and B infectious diseases, state-run Xinhua news agency reported.
A total of 6.95 million infectious disease cases were reported in 2012 and 17,315 people died, it said.
Besides AIDS, foot-and-mouth disease, diarrhea and colds and respiratory infections were the most deadly.