  We report on the charm physics potential at BES-III at BEPC-II which will
make significant contribution to quark flavor physics this decade. The charm
physics program will include studies of leptonic, semileptonic and hadronic
charm decays, and tests for physics beyond the Standard Model. Event samples of
the order of 30 million $\DD$ pairs, 2 million $\DspDsm$ pairs at threshold and
$10\times 10^9$ $J/\psi$ decays will be produced with one year design
luminosity. High precision charm data will enable us to validate forthcoming
Lattice QCD calculations at the few percent level. These can then be used to
make precise measurements of CKM elements, $V_{cd}$, $V_{cs}$, $V_{ub}$,
$V_{cb}$ and $V_{ts}$, which are useful to improve the accuracy of test of the
CKM unitarity.
