Abstract: An ejector comprises an ejector bar (2), a pressed section (3) provided at an end of the ejector bar, a press button (4) rotatably linked to the pressed section for rotation between an operation position where the press button projects in the lengthwise direction of the ejector bar and a stand-by position at right angles with the ejector bar and an engaging member (8) having at one end an engaging claw (9) which is movable between an ejection position where a card is inserted or ejected and an engaging position where the engaging claw engages the rear end of a card to prevent accidental ejection of the card, the press button and the engaging member being linked such that when the press button is at the operational position, the engaging member is at the ejection position while when the press button is at the stand-by position, the engaging member is at the engaging position.