本文运用韩礼德的功能语法中的及物性理论对奥巴马的就职演讲进行了分析。通过对演讲中的过程类型的数据统计分析发现物质过程和心理过程的句子比较多,其原因在于这两种过程更能表现真实性和客观性。这一发现有助于人们对政治演讲语言的深层次理解。 This article analyzes the inaugural speech of Obama by using the theory of physical properties in Halliday’s functional grammar. Through the statistical analysis of the process type data in the speech, we find that there are more sentences in the material and psychological processes because the two processes are more truthful and objective. This discovery helps people understand the political speech language deeply.