He can DIY or use agent (lots of them in China)
http://www.cic.gc.ca/english/immigrate/index.asp
http://www.cic.gc.ca/english/immigrate/skilled/index.asp
He will be the applicant, and wife/kid as dependents.
In order to keep the PR status, he has to stay here for 2 yrs every 5 yrs.