  The Bardeen model describes a regular space-time, i.e. a singularity-free
black hole space-time. In this paper, by analyzing the behavior of the
effective potential for the particles and photons, we investigate the time-like
and null geodesic structures in the space-time of Bardeen model. At the same
time, all kinds of orbits, which are allowed according to the energy level
corresponding to the effective potentials, are numerically simulated in detail.
We find many-world bound orbits, two-world escape orbits and escape orbits in
this spacetime. We also find that bound orbits precession directions are
opposite and their precession velocities are different, the inner bound orbits
shift along counter-clockwise with high velocity while the exterior bound
orbits shift along clockwise with low velocity.
