Abstract: A card reading device includes a card-reception base provided with a reception space in size corresponding to a card to be read with a plurality of contact zones, a card-reception zone on a first side thereof, and a fastener-reception zone on a second side thereof; a card reading portion located at the card-reception zone being provided with a plurality of resilient leaves and a flange, in which the resilient leaves are located at the bottom face of the card-reception zone and corresponding to the contact zones, while the flange is disposed in parallel with the transverse direction of the card-reception base; and a push-to-joint portion having its top face extended to form a protruding portion, being located at the fastener-reception zone in parallel with the transverse direction of the card-reception base.