The invention relates to a quality detector of selective spectral bright light medical equipment, which belongs to the filed of the metering test of selective spectral bright light medical science. The quality detector comprises a selective spectral bright light generator, a light weakening system, a light gathering system, a light dividing system, a photoelectric detector and a computer, wherein the selective spectral bright light generator is fixed on a detection platform, a plurality of detection points are arranged on the work surface of the detection platform, a computer controls the movement of the detection platform in the X direction and the Y direction, and the bright light sent by the selective spectral bright light generator sequentially passes through the light weakening system, the light gathering system and the light dividing system to be received by the photoelectric detector and is converted into electric signals to be sent into the computer for data detection. The spectral distribution and energy curve chart of each point and can be detected through the device, the three-dimensional spectral distribution and energy curve chart of the whole work surface can be further obtained, the consistency of the quality of instruments can be fundamentally ensured, and the invention provides the technical basis on the physical level by aiming at the optimal clinic effect of different individuals.