Abstract: Through scale conversion and analysis of the city wall and gate data in Ji’nan City on its planning characteristics, this paper uncovers the city wall and gate are governed by a system of two grid modules. Taking an analysis of Ji’nan City’s overall urban planning process into account, this paper posits that the spatial layout of Ji’nan City symbolizes a harmonious balance between the romanticism influenced by Chu philosophy and the pragmatic norms rooted in traditional rites of Zhou, representing a refreshed advancement in capital construction during the Warring States period. This paper not only furnishes a theoretical foundation for examining the planning techniques of Ji’nan City, but also enhances the understanding of the historical context of regional capital construction in the Warring States period.