Yes, he graduated for 5yrs and more than 6yrs of experince in industrial company. Thanks for giving me hope.Apply for what? Does he have the education/work experience to qualify for PR under an economic immigration stream (like Express Entry, PNP, etc)?
If so, then he should apply that way. He will list you as a common-law partner in his application, but since you're already a PR it wouldn't have any negative effect on it.
The only thing you can't do, is to sponsor him under a family class application (as common-law or married).