A refrigerator comprising: a main body including a cool air storage compartment; at least a rotatable refrigerator door (11, 12) coupled to the main body and including an opening allowing access to a good inside the refrigerator in at least one portion of the refrigerator door; a rotatable home bar door coupled to the refrigerator door to open and close the opening; a heater on at least one side of the home bar door, the heater disposed around the opening of the home bar; and a controller configured to control an amount of heat generated from the heater, and configured to control the heater according to the opening and closing of the home bar door, the refrigerator further comprises: sensors (210, 220, 230, 240) providing information about operating conditions, the controller being configured to control the heater to provide a variable amount of heat according to said operating conditions, wherein the sensors comprise: an inner temperature sensor configured to provide the controller with a measured temperature inside the main body; an ambient temperature sensor configured to provide the controller with a measured temperature outside the home bar door, characterized in that the heater comprising a plurality of heaters (121, 122, 123), wherein the sensors further comprise a door sensor on one side of the home bar door to sense opening and closing of the home bar door and a timer configured to measure an opening period of the home bar door, and the controller independently controls the plurality of heaters (121, 122, 123), based on the checked period that is measured by the timer such that the heater disposed on a side of the home bar where the home bar door is mounted generates a greater amount of heat than the other heaters among the plurality of heaters. a main body including a cool air storage compartment; at least a rotatable refrigerator door (11, 12) coupled to the main body and including an opening allowing access to a good inside the refrigerator in at least one portion of the refrigerator door; a rotatable home bar door coupled to the refrigerator door to open and close the opening; a heater on at least one side of the home bar door, the heater disposed around the opening of the home bar; and a controller configured to control an amount of heat generated from the heater, and configured to control the heater according to the opening and closing of the home bar door, the refrigerator further comprises: sensors (210, 220, 230, 240) providing information about operating conditions, the controller being configured to control the heater to provide a variable amount of heat according to said operating conditions, sensors (210, 220, 230, 240) providing information about operating conditions, the controller being configured to control the heater to provide a variable amount of heat according to said operating conditions, an inner temperature sensor configured to provide the controller with a measured temperature inside the main body; an ambient temperature sensor configured to provide the controller with a measured temperature outside the home bar door, characterized in that the heater comprising a plurality of heaters (121, 122, 123), wherein the sensors further comprise a door sensor on one side of the home bar door to sense opening and closing of the home bar door and a timer configured to measure an opening period of the home bar door, and the controller independently controls the plurality of heaters (121, 122, 123), based on the checked period that is measured by the timer such that the heater disposed on a side of the home bar where the home bar door is mounted generates a greater amount of heat than the other heaters among the plurality of heaters.