1. Location: Jiaotai Hall is located in the center of the palaces of the Ming and Qing Dynasties, which is the center of the whole palace. The buildings around Jiaotai Hall are scattered around, forming the layout of the whole palace.

2. Functional relationship: Jiaotai Hall is the place where emperors of Ming and Qing dynasties held important meetings and ceremonies, such as offering sacrifices to heaven, coronation and weddings. It is the place where emperors of Ming and Qing dynasties lived and worked, and it is a building for holding political activities or receiving distinguished guests.

3. Historical relationship: Jiaotai Hall was built in Yongle period of Ming Dynasty. After many repairs and expansions, it has become the present scale and style. The Ming and Qing palaces were also built in the Ming Dynasty, and gradually expanded and improved in the Qing Dynasty, forming a huge and spectacular building complex.