We present the results of stellar photometry of polar-ring galaxies NGC 2685 and NGC 4650A , using the archival data obtained with the Hubble Space Telescope ’ s Wide Field Planetary Camera 2 . Polar rings of these galaxies were resolved into \sim 800 and \sim 430 stellar objects in the B , V and I _ { c } bands , considerable part of which are blue supergiants located in the young stellar complexes . The stellar features in the CM-diagrams are best represented by isochrones with metallicity Z = 0.008 . The process of star formation in the polar rings of both galaxies was continuous and the age of the youngest detected stars is about 9 Myr for NGC 2685 and 6.5 Myr for NGC 4650A .