Actually, neither one is correct. If you are talking about a specific thing, you say "Remind me of it." If you were just asking to be reminded, you would say "Remind me."

Renne and Leanna are right!!! Let me give you an example: A: Remember to call Diana tomorrow! B: Please, remind me of it in the morning.

i am a chinese,:) in my opinion, remind me of it should be more reasonable