Abstract: Based on the context of shrinking land finance and industrial chain innovation, this paper explores the transformation of spatial demands in suburban areas of China's large cities from "scale-based supply matching" to "customized demand guidance" in the framework of "industry-city integration" planning. Taking the Lingang New City area in Shanghai as a specific case, the paper reviews the development process of industry-city relations, focusing on "crowd profiling and value division." By using differentiated spatial demand as an entry point for optimizing the "industry, city, and people" spatial organization relationships, the paper analyzes the differentiated spatial demand characteristics formed by various groups' residential choices, commuting preferences, and industrial chain organization. The paper further proposes a demand-driven, refined "industry-city integration" planning strategy.