The theoretical basis of the trading model is actually very broad, covering many advanced international theories, including modern financial investment, financial engineering, financial behavior, financial accounting, accounting, and econometrics. , chaos, simulation and many other modern multi-disciplinary theories; at the same time, it also includes traditional technical analysis theories, such as moving average theory, graphic analysis theory, wave theory, etc., and makes full use of modern science and technology such as computers and communications. There are many ways to classify trading models. They can be classified according to users or based on model theory. There are three main classification methods for model theory classification.