Abstract: Along with the development of virtual reality technology,simulation system as a new perspective of management methods and technical means in the progress of the project management,plays an increasingly important role.This paper discussed the development of applications based on Qt framework and the OSG Engineer application programming interface pouring simulation system development methods,and realized a concrete dam pouring process of visual simulation.At the technical level,we proposed that the mode of the dam for a certain period could be created by cutting a whole 3D dam model,avoiding creating it manually.The data was collected to generate corresponding pouring.The two-dimensional visualization of the same train of thought had the dynamic simulation pouring situation at the same time.Temperature,stress field scattered data points for the network reconstruction Georgia,intergrated with the two-dimensional simulation together.