The invention provides a color wheel, a light source, a projector and a manufacturing method of the color wheel, wherein the color wheel comprises a base plate (10), a wave length transfer layer (50), and a photic layer (30) in a sequentially stacking mode. In the direction which is perpendicular to a stacking direction, the edge of the wave length transfer layer (50) extends out of or coincides with at least one edge of the base plate (10) and the photic layer (30). An outer glue layer (70) is arranged on the outer side of the outer edge of the wave length transfer layer (50) in an enclosure mode. The color wheel, the light source, the projector and the manufacturing method of the color wheel effectively solve the problems that in the prior art, glue adding amount of the color wheel is difficult to control and glue adding operation is low in efficiency.