Provided is a camera module and a photosensitive component thereof and a manufacturing method thereof, said photosensitive component comprising: a circuit board, a photosensitive element, and a molding base; the molding base is integrally formed on the circuit board and photosensitive element to form a light window; a first end side corresponding to the molding base adjacent to the flexible region has a first side surface facing the light window; said first side surface comprises a first partial surface arranged adjacent to the photosensitive element and a second partial surface connected to said first portion surface; a first angle between said first partial surface and the optical axis of the camera module is greater than a second angle between the second partial surface and the optical axis; a second end side opposite to and away from the flexible region of the molding base has a second side surface facing the light window; said second side surface comprises a third partial surface arranged adjacent to the photosensitive element and a fourth partial surface connected to said third portion surface; a third angle between the third partial surface and the optical axis is greater than a fourth angle between the fourth partial surface and the optical axis.