SPLIT LENS AND ASSEMBLY METHOD THEREFOR, CAMERA MODULE, AND TERMINAL DEVICE

Disclosed are a split camera lens (20) and an assembly method thereof, a camera module (10), and a terminal device (100). The split camera lens (20) includes: a first lens portion (21) including a first optical lens (211), and a second lens portion (22); wherein the first lens portion (21) is assembled on the second lens portion (22), and the second lens portion (22) includes a lens barrel (222) and at least one second optical lens (221) mounted in the lens barrel (222); and the second optical lens (221) at the topmost side is completely exposed on the top of the lens barrel (222), thus, a "lens barrel top face" structure of the first lens portion (21) and the second lens portion (22) is removed so as to enlarge an adjustment range of the split camera lens (20). Furthermore, in case that the camera module (10) including the split camera lens (20) is assembled on the terminal device (100), an optical zone (212) of the first optical lens (211) may be adjacent to the top of a through hole (810) of a display screen (81) so as to obtain a larger field angle and light flux, thereby ensuring that the camera module (10) has a high imaging quality.