Provided is a simplified steam sterilization indicator pack that is able to improve reliability of Bowie & Dick Test, and also is able to be downsized and improves handling. A steam sterilization indicator pack comprises: a pack which accommodates a sterilization confirmation indicator part that comprises steam transmitting adjustment layers 20, 20, of which total thickness is 5-25mm, arranged so as to sandwich a sterilization confirmation indicator sheet 22 applying a printed pattern which colors or discolors due to contacting with steam, in a paper container 12 that passes steam more than the steam transmitting adjustment layers, and the steam transmitting adjustment paper sheets 18 include a sheet that has at least a density of 0.75g/cm 3 so that in a case where pressurized steam is introduced at 134 °C for 3.5 minutes in a vacuumed autoclave into which the pack is put and residual air remains in the autoclave, portions of the patterns of the sterilization confirmation indicator sheet 22 that finish discoloring and other portions thereof that do not discolor can be differentiated with the naked eye.
