The present disclosure discloses a quick-assembly light source module, a lighting device and a method of manufacturing a quick-assembly light source module. The quick-assembly light source module includes: an optical portion, a light source board and a circuit board; an edge or a light incident surface of the optical portion is provided with at least two first snap-fit elements, and a side portion of each of the first snap-fit elements is provided with a circuit board slot; the circuit board is provided with a first snap-fit hole; the first snap-fit element is inserted into the first snap-fit hole, and the circuit board is clamped into the circuit board slot, the light source board is disposed between the optical portion and the circuit board, and a surface of the light source board facing towards the light incident surface of the optical portion is provided with a light source.