An array camera module, comprising at least two camera module units, the two camera module units being a first camera module unit and a second camera module unit, respectively, wherein a height difference is formed between the bottom portions of the first camera module unit and the second camera module unit, and wherein the first camera module unit includes at least one first photosensitive assembly and at least a first lens, the first lens is located in a photosensitive path of the first photosensitive assembly, the first photosensitive assembly includes at least one connection portion, characterized in that the connection portion at least partially extends towards a direction away from the first photosensitive assembly to form the height difference, and the second camera module unit is fixed and supported on the connection portion, so that the first camera module unit and the second camera module unit are stably fixed; wherein the first photosensitive assembly includes a first circuit board, a first photosensitive element and a first base, and wherein the first base includes a first base body and an extension portion, the first base body is integrally molded on the first circuit board to form a first light window, providing a light path for the first photosensitive element, the extension portion at least partially integrally extends outwardly from the first base body to form the connection portion, a top surface of the extension portion forms the height difference relative to a bottom surface of the first circuit board, and the first photosensitive element is electrically connected to the first circuit board. at least two camera module units, the two camera module units being a first camera module unit and a second camera module unit, respectively, wherein a height difference is formed between the bottom portions of the first camera module unit and the second camera module unit, and wherein the first camera module unit includes at least one first photosensitive assembly and at least a first lens, the first lens is located in a photosensitive path of the first photosensitive assembly, the first photosensitive assembly includes at least one connection portion, characterized in that the connection portion at least partially extends towards a direction away from the first photosensitive assembly to form the height difference, and the second camera module unit is fixed and supported on the connection portion, so that the first camera module unit and the second camera module unit are stably fixed; wherein the first photosensitive assembly includes a first circuit board, a first photosensitive element and a first base, and wherein the first base includes a first base body and an extension portion, the first base body is integrally molded on the first circuit board to form a first light window, providing a light path for the first photosensitive element, the extension portion at least partially integrally extends outwardly from the first base body to form the connection portion, a top surface of the extension portion forms the height difference relative to a bottom surface of the first circuit board, and the first photosensitive element is electrically connected to the first circuit board.