I want to ask how to apply a china visa good for six months in malaysia.

Louie, may I know what type are you applying for?

Multi-entry with 6 month validity.

Well, the process for applying multiple entry permits is the same as that for single entry permits. If you have obtained Chinese entry permits before, then please submit their copies. If it's the first time you are applying for Chinese entry permit, your financial standing proof will be needed and the possibility for getting a mutile entry one becomes less.