中国史前方形城址的出现,最早发生在龙山时代的中原地区。优越的地理环境,版筑技术的成熟,审美观、世界观中独特的价值取向以及聚落发展中重视事先规划与总体布局的文化传统,为方形城址的产生准备了必要的先决条件。龙山时代中原地区社会发展中礼制建设的需要,是方形城址出现的根本原因。 The appearance of the Chinese prehistoric square city site first occurred in the Central Plains region of the Longshan era. Superior geographical environment, maturity of edition technology, aesthetic value, unique value orientation in world view, and cultural tradition that emphasizes prior planning and overall layout in settlement development have prepared necessary preconditions for the production of square city sites. The needs of building the system of rites in the social development of the Central Plains during the Longshan era are the root causes of the appearance of square-shaped urban sites.