A is discussed in three aspects from social opinion, system design to social actuality.

As a new guiding theory in social work practice,the social ecosystem theory is widely used in the social work in Hong Kong.

In order to protect natural environment and maintain ecological balance and to accelerate the sustainable development of human society,it is necessary to change the inconsistent social structure and its anti-nature essence: going from human society to ecological society,from anti-nature society to environment friendly society,from extravagant society to economical soc.

Human society must be reformed and geared towards ecological society to save the ecological environment from the current crisis.

On the basis of exploring connotation of ecological society, the thesis studies the inevitability and necessity of economic operation, technological development, cultural construction and green forms of consumption on ecological society.

Research into Social Ecology of Ruling by the People s Action Party of Singapore;

From the view of the social ecology,the social structure,the social environment and the system of social flowing must support the action of the technological innovation as the corpus of social action.

The post-modern philosophy of the ideological and political education on the social ecology,ecological culture is from the perspective of ideological and political education in the humanities care and the true meaning of life,formed the ideological education of the ecological value of social theory.