Ke Jianguo, 45, head of the Anti-Embezzlement and Bribery Bureau of Chongzhou City, fell from the fifth floor of his office building, state-run Xinhua quoted local officials as saying.
After an initial investigation, police revealed that Ke was being treated for depression at two local hospitals, it said.
Ke was appointed as the head of the anti-graft bureau in 2009.
Chinese Communist Party has stepped up anti-graft campaign in the recent months prosecuting several top officials.
Beijing: An anti-graft official in southwest China's Sichuan province jumped to his death on Sunday.
First Published: Sunday, February 17, 2013, 20:54