The utility model discloses a system is warned to hazardous articles for shipping, warn system, an upward slope section base, middle section base and downhill path section base including hazardous articles, hazardous articles warning system includes go up a slope a section base, middle section base and downhill path section base, wherein, a side of middle section base is provided with the sectionbase that goes up a slope, the utility model discloses the inside pressure sensor that is equipped with of the section of going up a slope base, a pressure sensor experiences pressure and produces voltage signal and give the controller with its transmission, the controller control source is opened, for the operation of hazardous articles warning mains power supply, inside the 2nd pressure sensor that is equipped with of downhill path section base, the 2nd pressure sensor experiences with signal transfer to controller behind the voltage signal, supply interruption behind the signal was receivedto the controller, the warning system closes, whole journey need not manually operation, the warning system is opened or closes in the automation, can also avoid a large amount of wastes of electricenergy in the time of the extension warning life of system.