1. In the stock market, the trend means that the ups and downs of the stock market are composed of a series of ripples, and the bottoms of these ripples form a straight line inclined upward, while the downs of the stock market are also composed of a series of ripples, but the tops of these ripples form a straight line inclined downward. These two lines connect the upward sloping line formed by the bottom of continuous rising ripple, and the downward sloping line formed by the top of continuous falling ripple is the "basic trend line of stock operation technical analysis".

2. At present, there is no clear and unified definition of technical analysis of stock market trends. It is generally considered that the trend of stock prices and issuance is analyzed by technical means.

3. Method of discovering stock trends: When the stock price is in an upward trend, the line connecting its lowest point is almost a straight line. The lowest point of stock price decline almost invariably falls on this line and rebounds, while the connection of its highest point is almost a straight line when the stock price is in a downward trend, and the highest point of stock price rebound almost invariably touches this line and falls back.