The grand gate, ceremonial gate, main hall, second hall, official residence, and upper chambers along the central axis of Zhonglu constitute the core architecture of the Governor's Mansion, while the faithfully restored displays within each hall serve as the focal point of the mansion's exhibition.

The governor-general was the local official responsible for governing one or several provinces, overseeing administrative affairs within their jurisdiction. The position of Governor-General of Zhili became an established post in the second year of the Yongzheng era (1724) under the Qing dynasty, serving through eight emperors over a span of 187 years—during which time 74 individuals held the role.