Based on the basic theory and method of dynamical system, according to a class of threedimensional financial dynamic systems, this paper studies the equilibrium point of this class of financial dynamic system, its nearby trajectory property, the final boundedness of the solution, global attractive sets, invariant set and so on, and ultimately gives corresponding computer simulation. This research is conducive to deepening the understanding of all kinds of financial policies, and this chaotic system is expected to be applied to control engineering, image encryption, chaotic circuit design and so on.