辽中京大定府位于今内蒙古自治区赤峰市宁城县,曾经是辽国(916-1125)的五个都城之一。据《辽史》记载,“圣宗尝过七金山(今宁城县大明镇九头山)、土河(今老哈河)之滨,南望云气,有郛郭楼阁之状,因议建都。”都城的形制布局仿照北宋都城汴梁,1008年(辽统和二十六年)建成使用。辽中京分外城、内城、皇城三部分。外城近方形,南北长3500米,东西长4200米,周长约15000米。城墙东、南、西三面有城门,外城正南门叫“朱夏门”。外城内有市肆、作坊、寺院,居民以汉人居多,此外还有回鹘人、女真人。内城位于外城中部偏北,南北长1500米,东西宽2000米,正南门为“阳德门”。内城设有官署、府库,还有接待外国 Located in Ningcheng County, Chifeng City, Inner Mongolia Autonomous Region, Beijing Dading is one of the five capitals of Liao (916-1125). According to the records of “The History of Liao”, “Shengzong had tasted the seven golden mountains (now the Jiutou Mountain of Daming Town in Ningcheng County) and the coast of Tuhe (now the old Hahe River). Jiandu.” The shape and layout of the capital were modelled on the beams of the Northern Song Dynasty and completed in 1008 (Liao and Twenty-six years). There are three parts: the city of Beijing, the city of Inner Mongolia, and the Imperial City. The outer city is nearly square, 3500 meters long from north to south, 4200 meters long from east to west, and 15,000 meters in circumference. There are city gates on the east, south, and west sides of the city walls, and the south gate of the city is called Zhu Xiamen. Outside the city, there are city halls, workshops, and monasteries. The residents are mostly Han Chinese, and there are also Huixi and Jurchen. The inner city is located in the north of the outer city, 1,500 meters long from north to south, and 2,000 meters wide from east to west. The south gate is Yangdemen. The inner city has official offices, government offices, and foreign receptions