The (1-x)Pb(Sc1/2Nb1/2)O-3-xPbTiO(3)(x=0.4, PSNT(60/40)) thin films near the morphotropic phase boundary(MPB) composition were successfully deposited via sol-gel method. Taking the strict controls of processing factors such as the stable and homogeneous precursor solutions, conditions of heat treatment and suitable substrates, it was possible to obtain the pyrochlore-free PSNT(60/40) thin films. The effect of substrate on the microstructure and crystallographic orientation is shown. Dielectric behaviors of sol-gel derived PSNT(60/40) thin films have been investigated.