When measuring the laser beam quality of different wavelengths, in order to avoid the calibration of focal plane position and reduce the measurement error, the superachromatic lens is researched and designed covering the ultraviolet to the near infrared band. Based on the theory of wave aberration, the equations for the initial structure of the superachromatic lens are derived. The superachromatic lens of wide spectral range is designed by the optical design software Zemax. Its waveband is 350~1100 nm, the focal length is 200 mm and the entrance pupil diameter is 25 mm. The structure of optical system, longitudinal aberration, focal shift curve and modulation transfer function (MTF) are given. Design results show that the spherical aberration curves of different wavelengths at 0.707 aperture intersect at one point approximately, achieving the superachromatism; the focal shift in the working waveband is only 26.3 [μm], and the focal plane position is fixed basically; the MTF is close to the diffraction limit in the range of cutoff frequency, meeting the measurement requirement of laser beam quality from ultraviolet to near infrared.