By comparing the political systems in different dynasties, this book illustrates the continuous evolution of traditional Chinese political systems, and evaluates the merits and demerits of the political systems in different dynasties. It also provides detailed records of the evolved government organizations, the names and functions of various offices, the titles and responsibilities of officials. The book consists of five chapters, each of which focuses on one of the five dynasties respectively -- Han, Tang, Song, Ming, and Qing, and a concluding summary. Combining historical facts and anecdotes from history to make the discussion straightforward, interesting, and easy to understand, this is an ideal book for anyone interested in the history of China, particularly its traditional political systems.