Abstract: On the basis of the previous study on welding solidification crack,the paper has developed a system for simulating welding solidification cracks.In the paper,the post-treating module of the system,namely simulating results of temperature field,is introduced.Based on a commercial finite element calculating software package,ADINT,the module uses program language Visual Basic 6.0 as main language to develop a data treatment system by combining with the math software package,MATLAB5.3,and matrix calculating function,Matrix VB.Providing a simple way to set up the position and time step to be treated,the module can display calculated temperature results in any positions and at any time steps.Temperature fields can be shown in the forms of three dimensions,contours and feature curves in transversal and vertical section,and the thermal cycles can be calculated and displayed in a given point.