  The coupling constants of D*D$\pi$ and B*B$\pi$ strong interactions are
computed in the effective quark model with chiral symmetry incorporating Heavy
quark effective theory (HQET) and Chiral perturbation theory at the quark level
with linear realization of chiral U(3)XU(3) symmetry. We predict g(D*D$\pi$) =
5.2 and g(B*B$\pi$) = 14.3. The corrections of large heavy quark mass expansion
to the constants g(D*D$\pi$) and g(B*B$\pi$) are calculated and make up less
than 1 per cent.
