Photon sieve is a diffractive optical element with large chromatic aberration, which is not suitable for imaging in wide spectral. The focal length of photon sieve decreases when the incident wavelength increases, while the focal length of positive refractive lens increases when the incident wavelength increases. The design applying the method of hybrid refractive-diffractive into the photon sieve achromatic is proposed. These opposite dispersive characteristics are used in this method. A plano-convex len is placed close to side of a photon sieve in order to achieve achromatic design. Then the achromatic system is designed in the visible spectrum. The analysis shows that the system is achromatic and has a certain ability of secondary spectrum correction. The relative error between focal lengths of achromatic wavelength and centre wavelength is 0.33%. The imaging spectral bandwidth is 20 nm. Compared with ordinary single photon sieve, the design broadens the imaging spectrum range. Compared with the hybrid refractive-diffractive system using zone plate, a smaller focusing spot can be achieved.