Pingyao County Office is located in the north of the middle section of Qimen Street, southwest of Pingyao Ancient City. It was built in Northern Wei, fixed in Ming and Qing Dynasties, sitting north and south, with an axial symmetrical layout, 203 meters long from the north and south, 131 meters wide from the east and west, covering an area of 2.66 10,000 square meters. It is one of the four ancient temples that have been preserved in China. It is also the largest ancient county office in the country. Pingyao City is the seat of the county, and there must be a regular place for officials and officials. The main and main buildings are ordered, symmetrical layout, front and rear beds, left and right. The ten-year "Shanxi Tongzhi" said: "Pingyao County rule in the southwest of the city Xuanhuafang, Yuan to Zheng six years to build, Guo Dynasty Hongwu three years of the main book Sun in Ming reconstruction." According to the Qing Guangxu eight years "Pingyao County Zhi" records, the county rule in the Ming Wanli 19 years, 25 years, 47 years, During the forty-eight years, there were large-scale construction and renovations; 12 years of Qing Shunzhi and five years of Guangxu repairs and additions. Outside the gate, there is a wind-view building on the left, a music building on the right, and a wall in front. Inside the gate, there are 3 Yimen, 1 archway, 5 lobby, 3 house doors, 5 second halls (Ming Dynasty's name "Zhongaitang"), 5 inner houses, 3 Daxian Buildings along the central axis from the south and north. Seven rooms in the east and west kilns (rooms) outside the Yimen are duty rooms. 11 rooms in the east and west rooms in front of the lobby are for the squat, household, ritual, soldier, criminal, and work rooms. There are 3 rooms in the hall and 3 rooms in the library. There are east and west rooms on each floor of the house. The east of the department has Zhangyu Pavilion, from the south and north there are Yulou, Land Yu, Yu Hotel, Hou Yu, Grain Hall and Garden. There is a statement pavilion in the west, and there are heavy prisons, women's prisons, light prisons, Hong Shanxuan, Supervisory Hall and "Horse" to the north.