To provide an internal temperature regulator for vending machine which can prevent articles on an upper rack of an article containing part from becoming high temperature at the time of heating.

Inside of a vending machine body 1 is provided with an article containing part 7, a heater 8 located downward of the article containing part 7, a first fan 30 which sends an air 40 heated by the heater 8 upward in the vending machine body 1 and has it circulate all through the machine and a duct 31. The duct 31 has a sucking port 32 for sucking the heated air 40 in the middle of an ascending path part A1 of a circulation path A and an ejecting port 33 for ejecting the air 40 to a sucking side of the first fan 30. Then, the sucking port 32 is located in an intermediate part in a vertical direction and is provided with a second fan 34 for sending the air 40 sucked from the sucking port 32 out to the ejecting port 33.