A vacuum adiabatic body is provided that includes a first plate member, a second plate member, a sealing part sealing the first plate member and the second plate member to provide a third space that has a temperature between the temperature of the first space and the temperature of the second space and is in a vacuum state, a supporting unit maintaining the third space, a heat resistance unit reducing an amount of heat transferred between the first plate member and the second plate member, a port through which air in the third space is discharged, and a heat exchange module coming into contact with an inner surface of a cavity provided by the first plate member and the second plate member so as to perform heat exchange.