Abstract: Tunnel construction monitoring and analysis requires complex expert knowledge and data analysis,which costs too much time,and it is conflicted with the construction period demand.Aiming at above problems,the paper developed tunnel monitoring analysis visualization system based on Visual C# platform and VTK techniques,and introduced global optimization method-Difference Evolution (DE) Algorithm and combined it with finite element method (FEM) in order to back analyze the surrounding rock parameters.Expounded the computing theory of the back analysis of DE-FEM. And also applied the system to the Dalian Metro tunnel engineering construction and got satisfied results.The soft system has active meaning to promote the intelligence,visualization and automation of the tunnel construction.