The Late Qing Dynasty and the Early Republican Period witnesses the process of the modernization in China as well as China’s first time to open to the world and gradually merging into the western-conducted market economy and capitalistic system. Compared with China’s traditional Institution of Building Officials and the Ministry of Works in feudal China, both the product of imperial system, the change of the regulatory agency of Urban Planning and Construction Management actual ly adapt s to the need of ma rket economy development. Therefore, the research in the change of regulatoryagency about Urban Planning and Construction Management in this special period is meaningful to the function and system construction of agencies today.