  In this paper, we explore the test particle motion around a black hole in
Einstein-Maxwell-scalar (EMS) theory using three different black hole solutions
within this theory. We have first analyzed the spacetime curvature structure of
these solutions and shown the existence of two singularities and the first one
is at the center $r=0$. In black hole spacetime, there are two regions divided
by the critical value of the cosmological parameter $\lambda_0$. The photon
sphere around the black hole in EMS theory has also been studied and found that
it does not depend on cosmological parameter $\lambda$. We have analyzed the
innermost stable circular orbits (ISCO) around the black hole and shown that
for all solutions ISCO radius for neutral particle decreases with the increase
of black hole charge. We have also studied the charged particle motion around
the black hole where charged particle motion is considered in the presence of
the gravitational field and the Coulomb potential. It is shown that ISCO radius
for charged particles increases depending on the selected value of the coupling
parameter which is in contradiction with observations of the inner edge of the
accretion disks of the astrophysical black holes and can be used as a powerful
tool to rule out the EMS theory from consideration for the gravitational field
theory. It is also studied the fundamental frequencies governed by test
particle orbiting around the black hole in EMS theory. Finally, as a test of
black hole solution in EMS theory ISCO radii is compared with that in Kerr
black hole and found that the spin parameter of Kerr can be mimic up to
$a/M\simeq 0.936$.
