At present, the most commonly used technical indicators in the market are KDJ and MACD indicators. KDJ index is an advanced index, which is mainly used for short-term operation. MACD, also known as Similarities and Differences smma, is the deviation of the average market cost, which generally reflects the overall trend of the midline. Theoretically, the lead of KDJ index is mainly reflected in the speed of reflecting the stock price, which belongs to a strong overbought area near 80, and the stock price has certain risks; 50 is a wandering area; Near 20 is a relatively safe area, which belongs to speculative area and can be used to open positions, but because of its fast speed, it often causes frequent trading signal errors; MACD indicator basically runs synchronously with the market price, which increases the requirements and restrictions of sending signals, thus avoiding the appearance of false signals. The advantage of combining the two to judge the market is that it can more accurately grasp the short-term trading signals of KDJ indicators. At the same time, due to the midline trend reflected by the characteristics of MACD indicators, two indicators can be used to judge the short-term and medium-term fluctuations of stock prices.