The study of developing packing machinery used for coil compactor in high temperature is a meaningful subject , also a very difficult problem for the improvement automation level of steel rolling works . From 1970's to 1980's, several iron and steel works home tried their best to devolop the equipment, but no one succeeded . From 1991 to 1994 , a subject group of the author's joining had carried out the investigation and made the equipment 's model system. After trial and error, the model system has been used in factory test and the better results have been achieved . The packing machinery system's constitution ,control principle, characteristic and its application are introduced.