We have measured the tunneling conductance of YBa2Cu3O7/Pb planar tunnel junctions fabricated on superconducting (110)‐oriented YBa2Cu3O7thin films exhibiting zero‐resistance superconducting transition temperatures (Tc’s) between 88 and 89.5 K. The conductance is the same as we and other groups have measured on (100)‐ and (103)‐oriented YBa2Cu3O7/Pb junctions and quantitatively different fromc‐axis tunneling. Theab‐plane transport is comparable to that measured in (001)‐oriented YBa2Cu3O7thin films, and the transport anisotropy varies between 65 and 80 from 300 K toTc, respectively. This anisotropy is higher than that previously measured in both (110)‐oriented andc‐axis aligned (100)‐oriented films, but it is comparable to that measured in single crystals. ©1996 American Institute of Physics.