High‐quality single phase Nd1+xBa2−xCu3O7−dthin films have been fabricated on SrTiO3substrates by the laser ablation method. The resistivity of the deposited films are usually lower than that of the YBCO film. TheTc(onset)andTc(R=0)in the optimized thin films are as high as 91 and 88 K, respectively. The crystallinity of our films are higher than the best YBCO films ever reported. The rocking curve FWHM of the (005) peaks in our thin films is typically 0.05°, which is superior to the best reported YBCO films. ©1995 American Institute of Physics.