As the living standards continue to improve, smarter and safer house environment are highly required. This paper introduces a kind of house environment monitoring system based on ZigBee network. The system consists of three parts: sensor module, wireless data transmission module and PC management center. Firstly, the design scheme of the system is completed; then, the hardware circuit design, software programming and the human-machine interface design are carried out respectively; finally, the system was tested by experiments. The experimental results show that the system performs robustly while the relative error of temperature, humidity and carbon monoxide is within 1%, 0.5% and 3% respectively.