A camera module, comprising a lens, a driving member, a photosensitive chip and a limiting member, wherein the photosensitive chip is a Bayer array sensor, the photosensitive chip comprises a plurality of pixel regions arranged in rows and columns, and each of the pixel regions includes four sub-pixel regions; the photosensitive chip is connected to the driving member, the photosensitive chip is in movable fit with the lens through the limiting member, the limiting member comprises a limiting base and a connecting component, and the limiting base or the connecting component is connected to the driving member; the limiting base is provided with a first limiting groove, a second limiting groove, a third limiting groove, and a fourth limiting groove that communicate with each other such as to form a movable space in which the connecting component can move and is in limiting fit with the above four limiting grooves, the second limiting groove is connected to the third limiting groove, the first limiting groove is located on one side of an arranging direction of the second limiting groove and the third limiting groove, the fourth limiting groove is located on the other side of the arranging direction, the first limiting groove is connected to the second limiting groove, and the fourth limiting groove is connected to the third limiting groove; and the driving member drives the photosensitive chip to switch between a first position, a second position, a third position and a fourth position relative to the lens; and in a case that the connecting component is limited in the first limiting groove, the photosensitive chip is in the first position, and light incident from the lens forms a first image in a first sub-pixel region of the photosensitive chip; in a case that the connecting component is limited in the second limiting groove, the photosensitive chip is in the second position, and light incident from the lens forms a second image in a second sub-pixel region of the photosensitive chip; in a case that the connecting component is limited in the third limiting groove, the photosensitive chip is in the third position, and light incident from the lens forms a third image in a third sub-pixel region of the photosensitive chip; in a case that the connecting component is limited in the fourth limiting groove, the photosensitive chip is in the fourth position, and light incident from the lens forms a fourth image in a fourth sub-pixel region of the photosensitive chip; and contents of the second image, the third image and the fourth image are the same as content of the first image, and equivalent sub-pixel regions of the first sub-pixel region, the second sub-pixel region, the third sub-pixel region and the fourth sub-pixel region in a same pixel region are any four of the sub-pixel regions in the pixel region. the photosensitive chip is connected to the driving member, the photosensitive chip is in movable fit with the lens through the limiting member, the limiting member comprises a limiting base and a connecting component, and the limiting base or the connecting component is connected to the driving member; the limiting base is provided with a first limiting groove, a second limiting groove, a third limiting groove, and a fourth limiting groove that communicate with each other such as to form a movable space in which the connecting component can move and is in limiting fit with the above four limiting grooves, the second limiting groove is connected to the third limiting groove, the first limiting groove is located on one side of an arranging direction of the second limiting groove and the third limiting groove, the fourth limiting groove is located on the other side of the arranging direction, the first limiting groove is connected to the second limiting groove, and the fourth limiting groove is connected to the third limiting groove; and the driving member drives the photosensitive chip to switch between a first position, a second position, a third position and a fourth position relative to the lens; and in a case that the connecting component is limited in the first limiting groove, the photosensitive chip is in the first position, and light incident from the lens forms a first image in a first sub-pixel region of the photosensitive chip; in a case that the connecting component is limited in the second limiting groove, the photosensitive chip is in the second position, and light incident from the lens forms a second image in a second sub-pixel region of the photosensitive chip; in a case that the connecting component is limited in the third limiting groove, the photosensitive chip is in the third position, and light incident from the lens forms a third image in a third sub-pixel region of the photosensitive chip; in a case that the connecting component is limited in the fourth limiting groove, the photosensitive chip is in the fourth position, and light incident from the lens forms a fourth image in a fourth sub-pixel region of the photosensitive chip; and contents of the second image, the third image and the fourth image are the same as content of the first image, and equivalent sub-pixel regions of the first sub-pixel region, the second sub-pixel region, the third sub-pixel region and the fourth sub-pixel region in a same pixel region are any four of the sub-pixel regions in the pixel region.