A mobile terminal, comprising: a rear housing, comprising a first shell (120, 320, 520, 620), a bearing portion (110, 410, 510) and a second shell (140, 340, 540, 640), wherein the bearing portion (110, 410, 510) extends from the first shell (120, 320, 520, 620), the bearing portion (110, 410, 510) and the first shell (120, 320, 520, 620) cooperatively defining a receiving space, the second shell (140, 340, 540, 640) being slidably arranged on the bearing portion (110, 410, 510) and being movable in a lengthwise direction or in a width direction of the mobile terminal relative to the first shell (120, 320, 520, 620) to be in a first position and a second position; in the first position, the second shell (140, 340, 540, 640) fills and levels up the receiving space and surrounds the bearing portion (110, 410, 510); and when the second shell (140, 340, 540, 640) moves to the second position, at least a part of the bearing portion (110, 410, 510) is exposed; a display screen (150, 350, 550, 650), connected with the first shell (120, 320, 520, 620); and a camera (170, 370, 570, 670), wherein the camera (170, 370, 570, 670) is arranged on the second shell (140, 340, 540, 640); an orientation of a light incident surface of the camera (170, 370, 570, 670) is the same as that of the display screen (150, 350, 550, 650); in the first position, a light incident surface of the camera (170, 370, 570, 670) is blocked, and in the second position, the light incident surface of the camera (170, 370, 570, 670) is exposed, characterized in that the second shell (140, 340, 540, 640) is provided with a clamping groove; an elastic piece and an ejector pin are arranged on the bearing portion (110, 410, 510); the elastic piece is elastically rested between the bearing portion (110, 410, 510) and the ejector pin; when the second shell (140, 340, 540, 640) is transformed between the first position and the second position, the ejector pin is slid into or out of the clamping groove. a rear housing, comprising a first shell (120, 320, 520, 620), a bearing portion (110, 410, 510) and a second shell (140, 340, 540, 640), wherein the bearing portion (110, 410, 510) extends from the first shell (120, 320, 520, 620), the bearing portion (110, 410, 510) and the first shell (120, 320, 520, 620) cooperatively defining a receiving space, the second shell (140, 340, 540, 640) being slidably arranged on the bearing portion (110, 410, 510) and being movable in a lengthwise direction or in a width direction of the mobile terminal relative to the first shell (120, 320, 520, 620) to be in a first position and a second position; in the first position, the second shell (140, 340, 540, 640) fills and levels up the receiving space and surrounds the bearing portion (110, 410, 510); and when the second shell (140, 340, 540, 640) moves to the second position, at least a part of the bearing portion (110, 410, 510) is exposed; a display screen (150, 350, 550, 650), connected with the first shell (120, 320, 520, 620); and a camera (170, 370, 570, 670), wherein the camera (170, 370, 570, 670) is arranged on the second shell (140, 340, 540, 640); an orientation of a light incident surface of the camera (170, 370, 570, 670) is the same as that of the display screen (150, 350, 550, 650); in the first position, a light incident surface of the camera (170, 370, 570, 670) is blocked, and in the second position, the light incident surface of the camera (170, 370, 570, 670) is exposed, characterized in that the second shell (140, 340, 540, 640) is provided with a clamping groove; an elastic piece and an ejector pin are arranged on the bearing portion (110, 410, 510); the elastic piece is elastically rested between the bearing portion (110, 410, 510) and the ejector pin; when the second shell (140, 340, 540, 640) is transformed between the first position and the second position, the ejector pin is slid into or out of the clamping groove.