In this paper, proving the pullback asymptotic compactness of processes by the aid of a contractive function in space X 0 , we prove the existence of a pullback attractor for N-dimensional nonautonomous thermoelastic coupled structure equationswith the lateral load distribution function h(x, t) and the external heat supply function q(x, t) unnecessarily bounded. The nonlinear source term g(u) is essentiallyif N ≥ 3 and 1 < ρ < ∞ if N = 1, 2.