本文阐述了圣彼得教堂兴建后期直至墨索里尼时代的几百年间,教堂历史地段的改造设计与发展演变特征,就教堂前方尖碑的设置、椭圆形广场的设计、广场前方地段的若干规划设想以及最后完成的“协和大道”设计,进行了分析和评价,并阐明其演变过程中所蕴涵的空间环境设计及美学方面的理论思想。 This article describes the renovation, design and evolution of the historic part of the church from the late construction of St. Peter’s Church to the era of Mussolini, the setting of the obelisk in front of the church, the design of the oval square, and the number of locations in front of the square. The planning assumptions and the final design of “Concord Avenue” were analyzed and evaluated, and the theoretical ideas of space environment design and aesthetics contained in its evolutionary process were clarified.