The present invention discloses an array camera module and application thereof, wherein the array camera module comprises at least one optical lens and at least one circuit board assembly. The circuit board assembly further comprises at least one photosensitive chip, at least one circuit board, and at least one electronic component, wherein the photosensitive chip and the circuit board are conductively connected, at least one of the electronic components is attached to a back face of the circuit board, and the optical lens is held in a photosensitive path of the photosensitive chip. In this way, at least one of the length and the width of the array camera module can be reduced, so as to be beneficial to the miniaturization of the array camera module, so that the array camera module can be conveniently applied to a light-weighted and thinned electronic device.