A card tray withdrawing apparatus and communication device are provided. Herein, the card tray withdrawing apparatus includes a first interference part arranged at a first position in a housing, a second interference part arranged at a second position in the housing, and a button mounted on the housing, capable of moving from an initial position to the first position and capable of moving from the first position to the second position. The button moving to the first position interferes with the first interference part, and the first interference part turns on a circuit in the housing; and the button moving to the second position interferes with the second interference part, and the second interference part drives a card tray to be separated from a card slot. Herein, the communication device includes a housing, and further includes the card tray withdrawing apparatus.