The Supreme People's Procuratorate (SPP) has pledged greater efforts to spot and correct improper commutation of sentences for "the rich and the powerful."
More than 700 Chinese fugitives suspected of involvement in economic crimes have been brought home from abroad since April to stand trial.
The number of low-level officials violating anti-bureaucracy rules fell for the second consecutive month, according to the disciplinary authority on Thursday.
The former vice governor of Central China's Hubei province, Guo Youming, has been sentenced to 15 years in prison for taking bribes worth around 23.8 million yuan ($3.7 million), a court in neighboring Henan province ruled Wednesday.
Four former officials from north China's Shanxi Province are being investigated on suspicion of accepting bribes, according to a statement released by the Supreme People's Procuratorate (SPP) on Wednesday.
The Communist Party of China (CPC) Central Committee and the State Council released a poverty alleviation instruction on Monday.
A graft investigation has been opened against Fang Keyou, former deputy chief of the disciplinary inspection team under the Communist Party of China committee of the eastern Anhui Province, the Supreme People's Procuratorate (SPP) announced on Tuesday.
The Communist Party of China (CPC) Central Committee will try to expand its discipline inspections into all government organs and government-sponsored institutions next year, a CPC disciplinary official said on Sunday.
Chinese prosecutors investigated 3,214 officials at county-level or above for dereliction of duty from January to August of 2015, the Supreme People's Procuratorate (SPP) has said.
One of China's most-wanted fugitives suspected of bribery was brought home on Saturday from the US where she had fled in 2002.
Three years have past since the austerity codes took effect. As of the end of October, some 104,900 violations have been reported nationwide and over 138,800 officials were subject to disciplinary action.
Shen Peiping, former vice governor of Yunnan Province, was sentenced to 12 years in prison for accepting bribes worth around 16 million yuan (2.5 million U.S. dollars), a Beijing court announced Thursday a guilty verdict.