Abstract: This thesis discusses the mode of constitutional government in the programme passed at the First National Congress of Democratic League in October 1945 by the middle elements. This “China characteristic” mode is that while the middle elements absorb the political democracy of the western constitutional government, they simultaneously pour into the content of economic democracy. Applying the method of comparative study, the author systematically compares this “Chinacharacteristic” mode with that of the western representative government system and Dr. SunYat-sen’s People’s Livelihood Principle. The author points out this mode is the sumtotal of the western political democracy and Dr. Sun Yat-sen’s People’s Livelihood Principle.

Key words: Democratic League, the middle elements, Sun Yat-sen, political democracy, economic democracy, the mode of constitutional government