The invention discloses a stage lamp reflector. The stage lamp reflector comprises a first reflection surface and a second reflection surface, wherein the first reflection surface is a convex surface, the second reflection surface is a concave surface, a sliding groove where a light guide pillar penetrates is formed in the middle of the second reflection surface, and the convex face of the first reflection surface is opposite to the concave face of the second reflection surface; the convex face of the second reflection surface is connected with a rotation mechanism, and the rotation mechanism can drive the second reflection surface to swing; and by swinging the second reflection surface, light spots change the direction along with swinging of the second reflection surface, and changes of the light spots are more abundant. The invention further discloses a stage lamp.