The present invention addresses the problem of providing a barrier resin film exhibiting excellent barrier properties without adopting a multilayer structure such as the structures used by the prior art. A barrier resin film obtained by forming a vapor-deposited aluminum oxide film on the surface of a resin substrate, wherein an elementally bonded structural unit represented by Al3 is distributed in the vapor-deposited aluminum oxide film, and the intensity ratio (Al3/Al2O3×100) of the maximum Al3 concentration elementally bonded structure section according to Time-of-Flight secondary ion mass spectrometry (TOF-SIMS) is 1-20, inclusive.