A camera module includes an image sensor, a first lens, a second lens and a beam splitting and combining component. The beam splitting and combining component is disposed between the first lens, the second lens and the image sensor. The first lens is suitable for imaging a first light beam of a first object onto the image sensor, while the second lens is suitable for imaging a second light beam of a second object onto the image sensor. In addition, both the first light beam and the second light beam are imaging onto the image sensor through the beam splitting and combining component. Therefore, the camera module is able to provide a two-way image-capturing function.