Abstract: A card dispenser includes a dispenser body, which defines an accommodation chamber for receiving a stack of cards for dispensing, a conveying unit mounted in the dispenser body and controlled to deliver the loaded cards from the accommodation chamber through a delivery path to an output port individually, an adjustment structure for adjusting the length and width of the accommodation chamber subject to the size of the loaded cards, a mobile base member detachably inserted into the dispenser body and provided with an adjustment device for adjusting a gap of the delivery path subject to the thickness of the loaded cards in the accommodation chamber, and detection devices respectively mounted in the dispenser body and the mobile base member for detecting accurate dispensing of every card through the delivery path to the output port.