The invention provides a camera module. The camera module comprises a first lens module, a second lens module and a circuit board. The circuit board comprises an installation region. A first direction graduation line and second direction graduation lines are formed on the installation region and divide the installation region into a first region and a second region. The first region and the second region are symmetrically arranged with the first direction graduation line serving as a central line. The first direction graduation line and the second direction graduation lines position the center positions of the first region and the second region. The first lens module is arranged in the first region, and an axis center of the first lens module is aligned with the center of the first region. The second lens module is arranged in the second region, and an axis center of the second lens module is aligned with the center of the second region. The invention further provides an electronic device.