  In this report, we comprehensively study the effect of H$^+$ irradiation on
the critical current density, $J_c$, and vortex pinning in FeSe single crystal.
It is found that the value of $J_c$ for FeSe is enhanced more than twice after
3-MeV H$^+$ irradiation. The scaling analyses of the vortex pinning force based
on the Dew-Hughes model reveal that the H$^+$ irradiation successfully
introduce point pinning centers into the crystal. We also find that the vortex
creep rates are strongly suppressed after irradiation. Detailed analyses of the
critical current dependent pinning energy based on the collective creep theory
and extend Maley's method show that the H$^+$ irradiation enhances the value of
$J_c$ before the flux creep, and also reduces the size of flux bundle, which
will further reduce the field dependence of $J_c$ due to vortex motion.
