Aiming at the lagging for the monitoring of warehouse and lacking the intelligence,an automated warehouse monitoring system is designed by using the internet of things,which may be used to monitor the temperature,humidity,and case of fire in the warehouse simultaneously. The temperature and humidity sensor SHT10 are implemented as the detector of the temperature and humidity,the flame sensor R2868 and the ionic smoke transducer HIS-07 are implemented as the detector of smoke and flame to find the fire. These data are sent to the computer in the manager center through Zigbee technology and the computer will process and analyze them. When the fire occurs,this system can extinguish the fire and call the manager or 119 automatically. The experiments have been performed,and it is shown that the performance of system is reliable,which has the practical value.