Two more men have been charged over the shooting death of Qin Wu at a house that was being used as a Buddhist temple in Sydney's west in 2017.

Six men have now been charged over the Chinese national's death.

Mr Wu, 37, was shot at the property on Kennedy Street, Guildford, about 11pm on February 1 last year after intervening in an argument, Detective Superintendent Scott Cook said.

"Detectives established Mr Wu was not the intended target; rather, he was shot when he intervened in an argument between his friend and others at the home," he said.