  In this paper, all possible orbits of test particles are investigated by
using phase plane method in regular Hayward black hole space-time. Our results
show that the time-like orbits are divided into four types: unstable circular
orbits, separates stable orbits, stable hyperbolic orbits and elliptical orbits
in regular Hayward black hole space-time. We find that the orbital properties
vary with the change of $\ell$ (a convenient encoding of the central energy
density $3/8\pi\ell^{2}$). If $\ell =\frac{1}{3}$ and $b < 3.45321$, the test
particles which moving toward the black hole will definitely be plunging into
the black hole. In addition, it is obtained that the innermost stable circular
orbit happens at $r_{min}$ = 5.93055 for $b$ = 3.45321.
