Police of Hunan province's capital Changsha city said the man landed in the police net nearly 23 years after the triple murders, state-run Xinhua news agency reported.
Liu had a run-in with several villagers on January 27, 1994 and fatally shot three of them before fleeing, it was alleged.
Police were tipped-off last month that Liu might be hiding in Liangqing District in Nanning, the capital of Guangxi.
The ensuing investigation uncovered that the man had assumed a fake identity, the report added.