A lens module includes a lens barrel, a lens group, and a soma. The soma includes a first end surface facing an object side and a second end surface facing an image side. An end point of the lens group closest to the object side is defined as an origin. An angle formed by a line connecting the origin to a point on the first end surface closest to an optical axis and the optical axis is defined as a first angle α. An angle formed by a line connecting the origin to a point on the second end surface closest to the optical axis and the optical axis is defined as a second angle β. The first angle α and the second angle β satisfy the following relationship: β>34.5° and α-β