The object of the present invention is to provide a safety facility 1 of a nuclear power plant, which efficiently and effectively protects safety facilities against events exceeded the expectations.
A safety facility 1 of a nuclear power plant of the present invention includes a hazard-resistant wall 2 and a space surrounded by the hazard-resistant wall 2. The space contains at least a water pouring pump 4 that supplies water to an inside of a reactor building 50 including a reactor pressure vessel 51 and a primary containment vessel 52, the reactor pressure vessel 51 storing a reactor core therein and maintaining a pressure in the reactor pressure vessel constant, and the primary containment vessel 52 including the reactor pressure vessel 51; a cooler facility 7 that cools equipment contained in the space; a generator 8 that generates electric power required for the equipment contained in the space; and an operation panel in disaster 6 that is used to operate equipment in emergency.