  The production of a pair of charged Higgs bosons from $e^{+}e^{-}$
annihilation in the presence of a circularly polarized laser field is
investigated in Inert Higgs doublet Model (IHDM) at ${e}^{+}{e}^{-}$ colliders.
We have derived the analytical expression for the laser-assisted differential
cross section by using the Dirac-Volkov formalism at leading order including
the $Z$ and $\gamma$ diagrams. Since the laser-free cross section of this
process depends, in the lowest order, only on the mass of the charged Higgs
boson and the energy of the center of mass, we have analyzed the dependence of
the total laser-assisted cross section on these parameters and also on the
laser parameters such as the number of photons exchanged, the laser field
intensity and its frequency. The results found indicate that the
electromagnetic field decreases the order of magnitude of the total cross
section as much as the laser field intensity increases or by decreasing its
frequency. Moreover, it becomes high for low charged Higgs masses and low
center of mass energies.
