The invention discloses a negative pressure ward in combination use in ordinary times and epidemic times. The negative pressure ward comprises a
medical care corridor, ward bodies, a patient corridorand buffer rooms, wherein a power distribution type ventilation
system comprises a main ventilating
machine, ventilating control modules, a main exhaust blower, exhaust air control modules,
differential pressure sensors used for monitoring the
differential pressure between the ward body and the corresponding buffer room and air quality sensors used for monitoring the air quality conditions in theward bodies, meanwhile, the invention further discloses a
ventilation control method of the negative pressure ward in combination use in the ordinary times and the epidemic times, when the ward bodiesare used as the negative pressure ward bodies, the exhaust air control modules can adjust the exhaust air rate in a linkage mode by combining feedback signals of the
differential pressure sensors, and it is ensured that the designed differential pressure can immediately return to normal after being damaged to prevent
cross infection, when the ward bodies are used as the common ward bodies, the ventilating control modules can adjust the ventilating volume in a linkage mode by combining feedback signals of the air quality sensors, then the exhaust air control modules are linked to adjust the exhaust
air volume, and it can be guaranteed that
energy consumption is reduced when the ward bodies are used as the common ward bodies.