A vacuum adiabatic body includes a first plate; a second plate; a seal; a support; a heat resistance unit; and an exhaust port, wherein the heat resistance unit includes a conductive resistance sheet connected to the first plate, the conductive resistance sheet resisting heat conduction flowing along a wall for the third space, the conductive resistance sheet includes a shielding part for heat-insulating the conductive resistance sheet by shielding a first surface of the conductive resistance sheet, and a second surface of the conductive resistance sheet is heat-insulated by the third space.