The work aims to study the effects of gold-silver foil paper specular reflection on the control over the color quality of printing matters, regarding that the gold-silver foil paper surface has such shortcomings as strong specular reflection effect and poor printability. The effects of gold-silver foil paper specular reflection on the lightness of printing matters were tested and analyzed. The relationship between the measured lightness including specular reflection effect and that without specular reflection effect was found out in curve fitting method. After inspection and analysis, with respect to SCI lightness, the measured data under the condition of SCE was too small. This was because the specular reflection light was excluded in the SCE measurement mode and only the diffused light was measured. From the linear fitting chart of the blue, the linear fitting chart was basically a straight line with a slope of 45°. There is a mathematical relationship between the group of data containing the specular reflection lightness and that containing no specular reflection lightness. In practical application, this linear relation of lightness difference can be considered as the basis for color control and evaluation in gold-silver foil paper.