I would suggest counseling or anger management counseling if he's willing and let him know that you'd be willing to go as well if he wants your relationship to work. If he's not willing to work on his issues, than I would definately put some space between the two of you until he learns to deal with his anger and temper. You will not be able to help him with this unless he first admits he has a problem and is willing to work on it. It's something he will have to unfortunately deal with on his own.

I had the same problem with a boyfriend and if you try helping him with it, (at least in my experience) he's gonna turn the tables on you and try and blame it all on you and tell you that your the one with the issues and the problem and he's fine. Or he'll tell you that you bring out his anger. Is there drinking involved also or just the temper? Mine had a temper and he was a big drinker as well and it was hard enough dealing with the temper issue, but the drinking and the temper definately did not mix well.

Good luck and be careful. Don't let it get to the point where it becomes mentally, verbally and physically abusive or messes with your self esteem.