A method to compute the scattering of two-partite continuous variable entangled state is proposed.The equivalence of one dimensional potential barrier and beam splitter is proven and the scattering of one dimensional potential barrier in two-mode squeezed vacuum state is studied.The results show that after the scattering of one dimensional potential barrier,the two-mode squeezed vacuum state will lose its entanglement,but it can keep a nonzero fidelity,and the fidelity will decrease as the squeezed factor i...