In this article, we investigate the longtime behavior for the following non-autonomous nonclassical parabolic equations on unbounded domain ut??ut??u+λu=f (x, u(x, t?ρ(t)))+g(x, t). Under some suitable conditions on the delay term f and the non-autonomous forcing term g, we prove the existence of uniform attractors in Banach space CH1(RN) for the multi-valued process generated by non-autonomous nonclassical parabolic equations with delays in unbounded domain.