Abstract: Based on the characteristics of tube stretch-reducing process, the elastic FE calculation program is prepared by means of the constituent element modeling technique. After graphic processing with AutoCAD and setting up of man/machine interaction interface via VB, the quick simulation system for tube stretch-reducing process is developed. With the said system, the deformation process during tube stretch-reducing operation is studied,resulting in the forecast of distributions concerning geometry, stress and strain of the rolled product. The simulation result is in compliance with the measurement result of relevant actual operation process, which means that the newly developed system is capable of simulating steel tube stretch-reducing process as well as forecasting product quality.