  The $J/\psi$ dissociation by $\pi$ and $\rho$ mesons is examined in meson
exchange model and compared to the quark interchange model. We found that the
main difference between the predictions of the two models could be resolved by
the form factors and the contact interactions in meson exchange model
calculations. By adopting covariant form factors and adjusting the four-point
couplings, we found that the meson exchange model could give similar
predictions with the quark interchange models not only for the magnitudes but
also for the energy dependence of the low-energy dissociation cross sections of
the $J/\psi$ by $\pi$ and $\rho$ mesons. Our finding suggests a way to
understand one of the discrepancies among the existing model predictions on the
$J/\psi$ dissociation cross sections by light hadrons.
