Because the moving average trend has a certain comparative effect, it is very important for technical analysis. Generally, short-term trends are analyzed by daily lines MA5 and MA 10, medium-term trends are analyzed by MA30 and MA60, and medium-and long-term trends are analyzed by M 125 and M250. And do short-term operation with 5-30 minutes K-line, and analyze the long-term trend with the moving average trend of weekly, monthly and annual K-line. By observing the slope of the moving average, we can better determine the potential direction of the market price. However, if a single moving average is used, it will send out more frequent error signals because of a single sampling data. In order to reduce mistakes and enhance the accuracy of the signal, we usually combine short, medium and long-term moving averages with different K-line patterns to accurately grasp the favorable opportunity of buying and selling and judge the trend.