China's leaders' corruption warning
9 November 2012 Last updated at 23:42 GMT
China's leaders have warned that the Communist Party may fall from power if it does not stop corruption.
There is a feeling that corruption is undermining the party's legitimacy in the eyes of ordinary people.
The months leading up to the 18th party congress have seen China's political leadership rocked by a scandal involving Bo Xilai, the former Chongqing party leader once seen as a candidate for top office.
Damian Grammaticas reports from China.