《四镇三关志》是明代嘉靖年间进士刘效祖编纂的一部重要的北塞边镇志书,多为研究明代兵制的学者所引用。但很少有学者从成书缘由的角度去探析《四镇三关志》的价值。本文就其内容、修纂目的及背景进行分析,指出该书的问世是主客观原因相互作用的结果,是时代的趋势和历史的必然。 “Four towns, three Guanzhi” is an important North Sebeian town book compiled by the scholar Liu Xiaozu during the Jiajing reign of the Ming Dynasty, mostly quoted by scholars who studied the military system in the Ming Dynasty. However, few scholars have explored the value of “Four Towns, Three Karstarts” from the perspective of publishing reasons. This article analyzes its content, purpose and background of compilation, and points out that the advent of the book is the result of the interaction between subjective and objective reasons, the trend of the times and the necessity of history.