The utility model relates to the technical field of simulators, and discloses a
solar simulator spectrum filter adjusting
system which comprises a base shell, a
light hole is formed in the base shell in a communicating mode in the direction perpendicular to the length direction of the base shell, and a
shutter used for opening and closing the
light hole is slidably arranged at the
light hole, close to one side of a light facing face, in the base shell. A semi-light shading piece is arranged at the position, close to the side away from the light facing face, of the light transmitting hole in the base shell, the semi-light shading piece covers the light transmitting hole, and a light filtering part is arranged between the semi-light shading piece and the
shutter. The light filtering part comprises a light filtering frame, two reels rotationally arranged in the light filtering frame, a flexible
light filter jointly wound on the two reels and a
servo motor for driving the reels to rotate, the two reels are distributed on the two sides of the light hole in the length direction of the base shell, and when the flexible
light filter is completely unfolded, the flexible
light filter is driven by the
servo motor to rotate. And a plurality of color cards matched with different
spectral bands of
sunlight are distributed along the length direction of the color cards. The method has the effects of improving the refinement effect of spectrum adjustment and enlarging the spectrum adjustment range.