The present disclosure relates to a camera module and a photosensitive assembly thereof. The photosensitive assembly comprises includes a circuit board, a photosensitive chip, and a packaging body. The photosensitive chip is connected to the circuit board. The packaging body is formed on the circuit board. A through hole is formed in the packaging body. The through hole is opposite to the photosensitive chip to provide a light channel of for the photosensitive chip. An inner side surface of the through hole comprises includes a first cambered surface, a connection surface, and a second cambered surface, and the first cambered surface and the second cambered surface are respectively connected to two ends of the connection surface. In the photosensitive assembly, both the upper and lower ends or the inner side surface of the package are provided to as cambered surfaces, which facilitate the demolding of the molding device of the packaging body and avoids damage to the packaging body by the molding device in the demolding step.