The rapid development of modern financial economics puts forward higher requirements on the training of financial professionals. Not only require students to master a wealth of theoretical knowledge, but also require them have some ability in practical operation and innovation. However, nowadays the simulation trading software on the market focuses on a quick demonstration. It is difficult to combine with theoretical knowledge to make a rational analysis and judgment, which makes it impossible to form a securities operating system. To solve this problem, we designed a simulated trading system for teaching, which focused on how to combine theoretical knowledge taught in class with real trading system operations closely. Real trading environment, the timely review of theory and rational evaluation of co-operation as a whole is both beneficial to teaching, also is helpful to the students' flexible use of knowledge.