The critical current densityJcof the epitaxialYBa2Cu3O7−&dgr;thin film was measured as a function of applied magnetic fieldHup to 6 T for three special configurations: (1)H∥caxis andH⊥J;(2)H⊥caxis andH⊥J;(3)H⊥caxis andH∥J.We observed a large anisotropy ofJc(H)betweenH∥caxis andH⊥caxis withH⊥J,and a very small anisotropy ofJc(H)betweenH∥JandH⊥JwithH⊥caxis. The field dependence of the critical current density can be well described by the modified Kim–Anderson model taking into account the Kramer scaling law. The weak dependence of the transport critical current density on its orientation relative to the applied magnetic field is discussed. ©1997 American Institute of Physics.