To provide the subject temperature and humidity regulating cabinet enabling the miniaturization and compaction while ensuring the shortening of thawing and fermenting times by arranging fans for exclusive use of thawing and fermenting simultaneously rotated with cooling fans only at the time of thawing operations or fermenting operations side by side with the cooling fans.

This temperature and humidity regulating cabinet 1 is obtained by arranging fans 17 for exclusive use of thawing and fermenting simultaneously rotated with cooling fans 7 only at the time of thawing operations or fermenting operations side by side with the cooling fans 7 in the temperature and humidity regulating cabinet 1, equipped with an evaporator 6 of a cooling device, the cooling fans 7 attached to the evaporator 6 and a heater, capable of rotating the cooling fans 7 at the time of freezing operations and turning on the heater at the time of the thawing operations or fermenting operations and is designed to rotate the cooling fans 7. Tube sheets 14 are attached to the outside of fins 13 at both ends attached to the evaporator 6 and the fans 17 for the exclusive use can be arranged side by side on both sides so as to be located at the rear on the outer surface of the tube sheet 14.