There is provided an austenitic stainless steel pipe excellent in steam oxidation resistance. The austenitic stainless steel pipe excellent in steam oxidation resistance contains, by mass percent, 14 to 28% of Cr and 6 to 30% of Ni, and is configured so that a region satisfying the following Formula exists in a metal structure at a depth of 5 to 20 µm from the inner surface of the steel pipe: α / β × δ / ε × 100 ≥ 0.3
where the meanings of symbols in the above Formula are as follows:
α: sum total of the number of pixels of digital image in region in which orientation difference of adjacent crystals detected by electron backscattering pattern is 5 to 50 degrees
β: the number of total pixels of digital image in region of measurement using electron backscattering pattern
ε: analysis pitch width of electron backscattering pattern (µm)
δ: grain boundary width (µm).