  In this paper, we present the methodology of photometric redshift
determination with the BATC 15-color system by using hyperz program. Both
simulated galaxies and real galaxies with known redshifts were used to estimate
the accuracy of redshifts inferred from the multicolor photometry. From the
test with simulated galaxies, the uncertainty in the inferred redshifts is
about $0.02\sim0.03$ for a given range of photometric uncertainty of $0.05 \sim
0.10$. The results with the 27 real galaxies are in good agreement with the
simulated ones. The advantage of using BATC intermediate-band system to derive
redshift is clear through the comparison with the UBVRI broad-band system. The
accuracy in redshift determination with BATC system is mainly affected by the
selection of filters and the photometric uncertainties in the observation. When
we take the limiting magnitudes of the 15 filters into account, we find that
redshift can be determined with good accuracy for galaxies with redshifts less
than 0.5, using only filters with central wavelengths shorter than 6000 A.
