Can my son study in UK

I have a British passport through my dad can my son study in UK?

Anyone with the right visa can study in UK.

If you are asking if your son is a UK citizen, he is NOT, because you cannot pass your citizenship to him, since you were not born or naturalised in UK. Your father was, and that is how you are UK citizen.

He is entitled to a UK ancestry visa, but there are many other ways he can go to UK and study.