渤海上京龙泉府遗址位于黑龙江宁安市渤海镇,东北距宁安市约35公里,东距今东京城镇约3公里(图一)。上京城是由外城、内城和宫城三部分组成。宫城地处上京龙泉府遗址北部居中,由西区、中区和东区三部分组成。第三宫殿遗址,是宫城中区南起第三座殿址(图二)。 The site of Longquanfu on the Bohai Sea is located in Bohai Town, Ning’an City, Heilongjiang Province. It is about 35 kilometers to the northeast from the city of Ning’an and about 3 kilometers to the east of Tokyo. The capital is composed of the outer city, inner city and Miyagi. Miyagi is located in the north of Longquanfu Site in Beijing, which is composed of three parts: the West District, the Central District and the East District. The third palace site, Miyagi is the third from the South Temple site (Figure II).