The invention provides a livestock and poultry house culture environment alarm system which comprises an environment control system and an alarm system. The environment control system comprises a large electrical network, an anti-error knife switch, an air switch, a power supply master switch, a blower fan switch, a blower fan AC contactor and a blower fan which are connected in order, wherein the anti-error knife switch is connected with a house generator, the blower fan AC contactor is connected with an environment controller, and the power supply master switch is connected with the alarm system. The alarm system comprises an intermediate relay, a temperature controller, an alarm switch, an alarm indicating lamp, a time relay, a time switch, a phase failure and phase sequence protector, an accumulator jar and an accumulator jar charger. According to the invention, the livestock and poultry house culture environment is monitored in all dimensions. Once an abnormal case occurs in the culture environment, the alarm system can emit an alarm timely and prompt a culturist to adopt solutions to keep the livestock and poultry house environment in a normal level, and a purpose of effective and safe production is achieved.