Card tray withdrawing apparatus and communication device

A card tray withdrawing apparatus, arranged to turn on a circuit in a housing and separate a card tray accommodated in the housing from a card slot and comprising:

• a first interference part arranged at a first position in the 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, wherein the button moving to the first position interferes with the first interference part, and the first interference part turns on the circuit in the housing;
• and the button moving to the second position interferes with the second interference part, and the second interference part drives the card tray to be separated from the card slot;
• wherein the first interference part comprises a first metal arc dome, the first metal arc dome comprises a bottom and an arc top protruding outwards from the bottom, a first wire of the circuit is connected to the top, a second wire of the circuit is connected to the bottom, and the button moving to the first position presses the top to contact with the bottom.