I am going to graduate this summer and my spouse want to study.
I  am looking for job  for  PHD in an engernering.

I heard one of my  friend , if I  have a H1 status , your spouse can pay in- state tution , is this true?????

help me for more advice.

Your problem is confusing me a lot.
What does it mean when u say "if I  have a H1 status , your spouse can pay in- state tution." Are you talking about your spouse or his spouse.

Yes if she is on H4 and you have maintained your residency in that state.

Yes, if you have H1, and your wife is H4 (H1's dependent),  she can pay resident fee. She has to be in H4 for a year (atleast in California, it might be different w/ different states. Check with her academic adviser) to be able to claim resident fee. Once, she's been in H4 for the required time, all your wife has to do is go to her school's website, find a form that says something like "Change in Visa status" or " Request to change status for residential fee", fill it out and submit it to her international adviser. It has to be been before the term she's trying to be a resident though, and different school have different due dates.