脉搏包含有丰富的人体健康状况信息。近年来，用现代科学技术和方法研究人体脉搏信息引起了国内外学者的广泛重视。本文研究了人体脉搏信号产生的特点及其物理过程，并初步建立了在信息论、系统论和声学理论基础上的脉搏源－系统模型。通过实验检测和新的信号分析技术——倒谱与倒滤波技术（ＣｅｐｓｔｒｕｍａｎｄＬｉｆｔｅｒｉｎｇＴｅｃｈｎｉｑｕｅｓ）的处理和分析，结果表明该模型是合理的。文中首次分析了脉搏声谱图的结构与特征，得出了与脉搏传输系统的生理特征相关的若干结论。 Pulse contains a wealth of information on human health. In recent years, the use of modern science and technology to study human pulse information has aroused widespread attention of scholars at home and abroad. In this paper, the characteristics and physical processes of human pulse signal are studied, and the pulse source - system model based on information theory, system theory and acoustic theory is preliminarily established. The experimental results and the new signal analysis technique, CepstrumentLiftTechniques, show that the model is reasonable. The paper first analyzes the structure and characteristics of pulse-wave spectroscopy, and draws conclusions about the physiological characteristics of the pulse transmission system.