A vacuum adiabatic body includes a first plate, a second plate, a seal that seals the first plate and the second plate to provide a space between the first plate and the second plate in a vacuum state, a support including at least a pair of support plates that maintain a distance between the first and second plates, a thermal insulator including at least one radiation resistance sheet provided between the pair of support plates to reduce heat transfer between the first plate and the second plate, and an exhaust port through which a gas in the space is exhausted.