To explore the varying law of the normal peoples four season pulse using the data of the modern pulse diagnosis of the Traditional Chinese Medical science to answer the question og “How does the season pulse work?” in Huangdi Neijing.Methods: The pulse data of 12 solar terms within 12 months from the 6 pulse-taken locations of normal persons double hands were collected by using the datum analysis collecting system with sophisticated intelligent mechanical hand of the Traditional Chinese medical science. Analysis was given to 193 parameters by using the method of sine faction harmonic fitting to create the model of the pulse graph. Results: The distribution of the original pulse dada from the 6 pulse-taken locations of the double hands showed obvious synchronization and regular variation. And there was apparent relationship between the pulse positions and average value of the pulse power with the background data of the heaven and the earth. The curve chart was made according to it. Conclusion: The pulse graph parameters of the normal peoples four season pulse can provide the datum proofs of “the human beings behaviors agreeing with the nature”.