A refrigerator comprising: a housing formed of a heat insulating wall; a storage compartment (12, 13, 14, 15, 16) separated from external air by a door (15a; 15b) which closes a storage opening of the housing; and a gasket which is provided on a circumferential edge of the door (15a; 15b) and brings the door (15a; 15b) into close contact with the housing, a compression structure (23a, 25a, 26a; 23b, 25b, 26b) formed of an actuator using a driving source, the door (15a; 15b) having: a first closed door mode, in which the compression structure (23a, 25a, 26a; 23b, 25b, 26b) is configured to bring the gasket into close contact with the housing to have a compressed state of the gasket, and is configured to hold the compressed state of the gasket; and a second closed door mode in which the compression structure (23a, 25a, 26a; 23b, 25b, 26b) is configured to release the compressed state of the gasket, the refrigerator further comprising: a human detection sensor configured to detect a presence of a human in vicinity of the refrigerator and an operation controller by which opening and closing of the door (15a; 15b) are predicted, wherein, when the human detection sensor predicts that the door (15a; 15b) will not be opened and closed within a predetermined period of time, the first closed door mode is established by the operation controller, and when the human detection sensor predicts that the door (15a; 15b) will be opened and closed within the predetermined period of time, the second closed door mode is established by the operation controller before the door (15a; 15b) is opened and closed; characterized in that the compression structure (23a, 25a, 26a; 23b, 25b, 26b) is configured to use a holding torque of the driving source and a gear mechanism in the actuator to hold the compressed state of the gasket when an electric power is disconnected. a housing formed of a heat insulating wall; a storage compartment (12, 13, 14, 15, 16) separated from external air by a door (15a; 15b) which closes a storage opening of the housing; and a gasket which is provided on a circumferential edge of the door (15a; 15b) and brings the door (15a; 15b) into close contact with the housing, a compression structure (23a, 25a, 26a; 23b, 25b, 26b) formed of an actuator using a driving source, the door (15a; 15b) having: a first closed door mode, in which the compression structure (23a, 25a, 26a; 23b, 25b, 26b) is configured to bring the gasket into close contact with the housing to have a compressed state of the gasket, and is configured to hold the compressed state of the gasket; and a second closed door mode in which the compression structure (23a, 25a, 26a; 23b, 25b, 26b) is configured to release the compressed state of the gasket, a first closed door mode, in which the compression structure (23a, 25a, 26a; 23b, 25b, 26b) is configured to bring the gasket into close contact with the housing to have a compressed state of the gasket, and is configured to hold the compressed state of the gasket; and a second closed door mode in which the compression structure (23a, 25a, 26a; 23b, 25b, 26b) is configured to release the compressed state of the gasket, the refrigerator further comprising: a human detection sensor configured to detect a presence of a human in vicinity of the refrigerator and an operation controller by which opening and closing of the door (15a; 15b) are predicted, wherein, when the human detection sensor predicts that the door (15a; 15b) will not be opened and closed within a predetermined period of time, the first closed door mode is established by the operation controller, and when the human detection sensor predicts that the door (15a; 15b) will be opened and closed within the predetermined period of time, the second closed door mode is established by the operation controller before the door (15a; 15b) is opened and closed; characterized in that the compression structure (23a, 25a, 26a; 23b, 25b, 26b) is configured to use a holding torque of the driving source and a gear mechanism in the actuator to hold the compressed state of the gasket when an electric power is disconnected. a human detection sensor configured to detect a presence of a human in vicinity of the refrigerator and an operation controller by which opening and closing of the door (15a; 15b) are predicted, wherein, when the human detection sensor predicts that the door (15a; 15b) will not be opened and closed within a predetermined period of time, the first closed door mode is established by the operation controller, and when the human detection sensor predicts that the door (15a; 15b) will be opened and closed within the predetermined period of time, the second closed door mode is established by the operation controller before the door (15a; 15b) is opened and closed; characterized in that the compression structure (23a, 25a, 26a; 23b, 25b, 26b) is configured to use a holding torque of the driving source and a gear mechanism in the actuator to hold the compressed state of the gasket when an electric power is disconnected.