一问题的提出郊礼是国家重要礼制内容,而郊坛则属礼制建筑,而“礼制建筑是按照儒家经典的祭祀原则在古代都城范围内修建的、对天地祖先人鬼等举行国家祭祀活动的建筑设施”~①。我们知道,《周礼·考工记》对后代建都立国的影响较大,但是《考工记》成书时间不确定,学界一般认为其内容为西汉时人依战国遗简所撰。~②《考工记》讲王城制度,但若按照后代城市发展规模看,它所指的城只相当于后世宫 One issue put forward that the suburbs are important state ritual content, while the suburbs are ritual buildings, and “ritual architecture is built in accordance with the Confucian classic rituals in the ancient capital city, held against heaven and earth ancestors and other ghosts National sacrificial activities of the building facilities ”~ ①. We know that “Zhou Gong Kaogong Ji” has a great influence on the nationhood of future generations and the establishment of the capital. However, the time of writing “Kaogongji” is indefinite. The scholars generally think its contents are based on the remnants of the Warring States Period in the Western Han Dynasty. ~ ② “Kaogongji” Wangcheng system, but according to the scale of future generations of urban development, it refers to the city is only equivalent to the later imperial palace