The present disclosure provides a SIM card seat and a mobile terminal, which belongs to the electronic technical field. The SIM card seat is used for receiving a SIM card, which comprises a housing, a signal conducting terminal, a card holder and a ejector. The signal conducting terminal is disposed on the motherboard. A receiving space is formed between an area of the motherboard where the signal conducting terminal is located and the housing, which is used for receiving the card holder and ejector. The card holder is used for receiving the SIM card and matching different types of SIM cards. The ejector is used for ejecting the card holder out of the receiving space. The mobile terminal comprises the SIM card seat. The SIM card seat according to the present disclosure can match different types of SIM cards by changing the card holder, thus the mobile terminal having the SIM card can match various SIM cards accordingly. Therefore, it is not required for the user to change the SIM card to match various mobile phones, which is convenient for the user, and reduces waste of resources.