  We study small perturbations of a sectional hyperbolic set of a vector field
on a compact manifold. Indeed, we obtain robustly finiteness of homoclinic
classes on this scenary. Moreover, since attractor and repeller sets are
particular cases of homoclinic classes, this result improve (A. M. L\'opez B,
Finiteness and existence of attractors and repellers on sectional hyperbolic
sets, Discrete and Continuous Dynamical Systems-A 37).
