In order to improve the imaging resolution and image contrast, the method proposed in this paper to achieve phase-contrast imaging with a spiral photon sieves.The transmission zone of the spiral zone plate is replaced appropriately by a large number of pinholes, with Bessel-like function as the spiral photon sieves apodization window.The same minimum features sizes, the numerical aperture of spiral photon sieves is increased compared to spiral zone plate, so spiral photon sieves show substantially better spatial resolution the spiral zone plate according to the Rayleigh resolution criterion.The advantage of spiral photon sieves is that can modulate the population of the pinholes per zone with an apodization window, resulting in high signal-to-noise ratio or extremely low side lobe. So the spiral photon sieves have a high imaging contrast based on the principle of pupil apodization. Compared with the spiral zone plate, the point spread function of the spiral photon sieve the main lobe width is relatively narrow and the side lobe amplitude is relatively lower. In phase-contrast imaging, spiral photon sieve can not only eliminate image “relief” effect in the circular phase object imaging but also can distinguish dense phase jump in the periodic rectangular strip phase object imaging, improving greatly the image contrast. Therefore, the spiral photon sieves has higher resolution and contrast in phase-contrast imaging, so that it will have broad application prospects in the field of medicine.