The purpose of this course focused upon models of processes that occur in finance. Quantitative tools that are used to construct and then test mathematical representations of the real world would be introduced. With the training of this course, the students would gain some understanding of the science and art of determining what type of model to be build, building the model which is most appropriate, testing the model statistically, and then finally applying the model to practical problems in analysis. The major contents of this course include: 1.Heteroscedasticity; 2.correlation test;3.Diagnostic test; 4.Time series model;5.Unit roots test;6.GARCH model.