A lamp color temperature change structure includes a lamp holder, a light source on the lamp holder, a lift unit in front of the light source, and a colored lens mounted to the lift unit. The colored lens is movable and driven by the lift unit to a first position which is away from the front of the light source or a second position which is in front of the light source. The user can select the light from the light source to radiate toward the front of the lamp holder or penetrate the colored lens to generate a color temperature change and then radiate toward the front of the lamp holder according to different environment conditions.