In this paper, the influences of parameters on the dynamics of a fractional-ordcr Newton-I eipnik system were numerically studied. Impulsive synchronization of two fractional-order Ncwton-Lcipnik systcms was also investigated. The ranges of the parameters In this paper, the influences of parameters on the dynamics of a fractional-ordcr Newton-I eipnik system were numerically studied. Impulsive synchronization of two fractional-order Ncwton-Lcipnik systcms was also investigated. The ranges of the parameters