本文以《春秋》經傳為討論範圍，爬梳相關資料以推證春秋時代戰爭動員準備時間，並提出實際道路里程之法。經本文分析可知，春秋時代動員部隊所需時間長則約一個月，中則二十日，短則僅六日。動員時間長短乃因戰爭動員規模而定，徵發人員與物資愈多，所需準備時間則愈長；反之，則可縮減準備時間。此外，本文亦透過資料比對，提出地圖上兩點直線距離乘以1.137倍，可更接近實際道路里程

This article takes the ＂Chunqiu jing＂ and ＂Zuo Zhuan＂ as the research scope, and after sorting out all clues, it shows some evidences that how long the nobles prepared for war mobilization then. According to those preparing time, it can also bring up how far they actually moved. Normally, it took six to thirty days for mobilization; however, it took longer to a big war if they needed more troops and supplies, and it all depended on the scale of a war. In addition to preparing time of mobilization, this article can also show how long troops marched by analyzing a beeline of two points on the map, and the real distance is probably the beeline times 1.137