Abstract: The investment decision is a resolution process to investigate,analyse,programming,demonstrate and to decide whether or not to invest into a project.It is very important that the decision method should be scientific and accurate.In fact,the project has some uncertainty so that the venture must be studied as to evaluate investment scheme,otherwise,the decision is easily wrong.This paper summarize the development course of investment decision and the studied situation of methods of venture decision in current mining project,then,the limit and development trends are analyzed about the venture decision methods.