To provide a refrigerator with an RF-ID tag reader and a database stored with read food information and a system which confirms the stock in the refrigerator by using a portable information terminal.

This refrigerator 1 is characterized by that a refrigerator which stores foods together with RF-ID tags having recorded food information has RF-ID tag readers both inside and outside and is equipped with a database stored with the food information read by the RF-ID readers. In this refrigerator stock confirmation system, the refrigerator 1 which stores the foods together with the added RF-ID tags having recorded food information is included and food information necessary for shopping is obtained by accessing the database stored with the food information read out of the RF-ID tag of foods in the refrigerator by a user from an outside visiting place by using a portable terminal 2.