The deviation form and MACD index of 1 can well judge a top market above the middle level. The deviation of MACD indicators is mainly divided into two types: one is the trend deviation in the same period; The other is the deviation between cross-cycle trends. 2. The application of classical forms. When it comes to classic forms, there are mainly double tops, three tops, domes, heads and shoulders, and inverted V-shapes. In the application of forms, many investors do not make good use of them, and sometimes even make many mistakes. The main reason is that the judgment of morphology is not very accurate, which is mainly manifested in the time span of morphology and the strength of morphological structure. 3.k-line combination-the secret of density and length. K-line is often the trace left by the competition between long and short sides. However, the specific manifestations of long-short competition are divided into: long-short stalemate, long-short fight and long-short acceleration. K-line combination has different expressions. The density and length of Yin-Yang line in K-line is an important index to measure the long-short energy.