介绍了历史文化街区的色彩调研方法及保护原则,从个性色彩与整体景观两方面,调查分析了无锡市南长街的建筑色彩现状,并提出了一些保护建议,使历史街区的建筑色彩既保留其原真性,又与周边环境色彩相互融合统一。 This paper introduces the methods and principles of color survey in historical and cultural blocks, investigates and analyzes the color of buildings in Nanchang Street in Wuxi from two aspects of individuality and overall landscape, and puts forward some protection suggestions to make the historic colors of buildings not only retain Its authenticity, but also with the surrounding environment color integration and unity.