This book belongs to the interdisciplinary study of linguistics and philology. From the perspective of traditional philology such as text, phonology, exegesis, etc., the key words, words and sentences in the Laozi on the Tibetan Chinese bamboo slips of Peking University are collated, verified and annotated. Based on this, it discusses the meaning of Laozi on Han bamboo slips, and summarizes the theme of each chapter. It comprehensively uses traditional primary school tools and modern linguistic methods to interpret the Laozi on Tibetan and Chinese bamboo slips of Peking University, and integrates the research results in the form of translation and annotation, which is a distinctive feature of the manuscript.