The utility model discloses a metasurface lens testing tool. The metasurface lens testing tool comprises a testing carrier plate, a lens clamp and a CCD calibration
assembly. The lens clamp is assembled on the test carrier plate, the lens clamp comprises a base and a cover plate which are matched with each other, the base is provided with a lens mounting groove, the groove bottom of the lens mounting groove is provided with a first diaphragm hole, and the cover plate is provided with a second diaphragm hole; the CCD calibration
assembly is used for calibrating the first diaphragm hole and enabling the pattern center of the lens, the second diaphragm hole and the first diaphragm hole to be aligned. The state of the metasurface lens in the optical
system is simulated through the lens clamp, the CCD calibration
assembly is used for calibrating the first diaphragm hole in the base, then the pattern center of the metasurface lens and the second diaphragm hole in the cover plate are aligned with the first diaphragm hole, and therefore the metasurface lens can be accurately calibrated under the condition that the whole optical
system does not need to be integrally assembled. Therefore, the optical performance of the metasurface lens can be tested.