A camera-lens automatic pop-up device, characterized in that it comprises: a camera lens, a first elastic assembly, a rotating assembly, a slide-rail switch and a second elastic member; wherein: the camera lens is connected with one end of the first elastic assembly, the second end of the first elastic assembly being connected to the body of a terminal, a side of the camera lens being provided with a connection groove; the rotating assembly engages the connection groove and the slide-rail switch respectively, such that when the slide-rail switch is moved downwards, the slide-rail switch rotates the rotating assembly so that the rotating assembly is disengaged from the connection groove and the first elastic assembly pops up the camera lens, and after the camera lens is popped up, and the camera lens is pressed down again so that the first elastic assembly is compressed, the connection groove is again engaged with the rotating assembly, such that the rotating assembly rotates to move the slide-rail switch so that the slide-rail switch is reset; the slide-rail switch is connected with the body through the second elastic assembly such that, after the slide-rail switch has been reset, the second elastic assembly fixes the slide-rail switch, wherein the rotating assembly comprises an upper connection board, a lower connection board and a holding board positioned between the upper connection board and the lower connection board; the upper connection board is engaged with the connection groove when the camera lens is not popped up; the holding board is provided thereon with a circular through-hole, the through-hole matches with a rotating shaft provided on the body so that the rotating assembly is rotated; the lower connection board is connected with the slide-rail switch, characterized in that the upper connection board, holding board and lower connection board form a Z-shaped structure. the camera lens is connected with one end of the first elastic assembly, the second end of the first elastic assembly being connected to the body of a terminal, a side of the camera lens being provided with a connection groove; the rotating assembly engages the connection groove and the slide-rail switch respectively, such that when the slide-rail switch is moved downwards, the slide-rail switch rotates the rotating assembly so that the rotating assembly is disengaged from the connection groove and the first elastic assembly pops up the camera lens, and after the camera lens is popped up, and the camera lens is pressed down again so that the first elastic assembly is compressed, the connection groove is again engaged with the rotating assembly, such that the rotating assembly rotates to move the slide-rail switch so that the slide-rail switch is reset; the slide-rail switch is connected with the body through the second elastic assembly such that, after the slide-rail switch has been reset, the second elastic assembly fixes the slide-rail switch, wherein the rotating assembly comprises an upper connection board, a lower connection board and a holding board positioned between the upper connection board and the lower connection board; the upper connection board is engaged with the connection groove when the camera lens is not popped up; the holding board is provided thereon with a circular through-hole, the through-hole matches with a rotating shaft provided on the body so that the rotating assembly is rotated; the lower connection board is connected with the slide-rail switch, characterized in that the upper connection board, holding board and lower connection board form a Z-shaped structure.