Abstract: The clean ecology of government at the grass-roots level belongs to the category of political ecology,which means that the governance and service of the grass-roots government at all levels reach a kind of good political ecology.With a fundamental purpose to serve the people,the ecological system of clean grass-roots government has a historical heritage,whose normal operation needs the balances and supervision from all sides.In the modernization process of China's economy and society,the grass-roots government should not only realize its own political purpose,but also serve the development of the grass-roots economy and society.The political ecology of the grass-roots government is vulnerable to the erosion of the principle of commodity exchange,which is likely to cause dual dilemma of internal ecology and external ecology.The possible way out of the dilemma lies in that we should draw a clear political and economic boundary,avoiding the erosion of principle of commodity exchange to the clean ecology of grass-roots government.By building a contingent of high-quality and specialized grassroots cadres,we should optimize the clean ecology of grass-roots governments from the energy source.Also,we should promote grass-roots consultative democracy,and guarantee the people's right to participate extensively in grass-roots political life.

Key words: grass-roots government, clean ecology, political ecology, mass line, grass-roots consultative democracy