What is a trading system? From a simple concept, trading system is the materialization of systematic trading thinking. Systematic trading thinking is a kind of thought, which is embodied in the overall observation of price movement and the continuous observation of market judgment and analysis, and in the comprehensive embodiment of the decision-making characteristics of trading objects, trading funds and trading investors. Systematic trading thinking involves a lot of content, so it is impossible to give more space as the focus of discussion here. However, it must be pointed out that because the trading system is the materialization of systematic trading thinking, it is by no means comparable to any simple market broadcast software or market auxiliary analysis software on the market at present.