Can I deposit money into my moms checking account if i know the pin?
She asked me to deposit some money into the checking account.
its Not under my name, so can i do it?
Calm down, why so frantic? You can deposit on behalf of your mom but you need a deposit slip with her account number on it. If you're depositing a check she has to sign the back or write "for deposit only" on it. If you're doing it at a teller's window you don't need her pin.
If you're depositing it in an ATM you will need her pin and the deposit slip.