I booked a room in Ctrip. Do I have to pay a deposit to go to the front desk?

Normal. No need. You don't have to pay a deposit if you have credit.

However, most hotels in China need you to pay the deposit again, and you will be finished if you are afraid of trouble, or tell him that many hotels are afraid that if you don't pay the deposit, the items will be damaged and lost, because Ctrip can't guarantee the compensation for the damage.