Maintaining a healthy investment psychology is a necessary condition for investors to correctly understand and practice the market. Good psychological quality can enable investors to exert stronger thinking ability and higher efficiency, make timely, objective and accurate analysis and judgment on fundamental and technical changes, formulate more scientific and reasonable operation strategies and strictly implement them. Otherwise, the loss of book value caused by market reversal will cause strong interference and damage to investors' analytical thinking and operation, making investors' thinking and feelings narrow and rigid, and it is difficult to maintain a rational and objective attitude to adapt to the ever-changing market conditions, leading to repeated mistakes in judgment and chaotic operation rhythm. All investment processes can be divided into three links: recognizing the market, analyzing the market and actual operation. The specific investment process is a process from recognition to analysis to practice, and then from practice to learning, so it is repeated and constantly improved. In the process of entering the investment market, investors usually make mistakes caused by thinking and mentality, so they have to go through the following stages, which can also be said to be the process of investor growth: the first stage is the painful period; The second stage of learning; The third stage of confusion; The fourth stage selection period; The fifth stage is maturity.