The harmony between man and nature is the base for the harmonious society. It is determined by the eco-rule and eco-economic rule. Human being should not violate the eco-rule. However, human being can make eco-system supply suit economic growth and its speed through systematical innovation and restriction of human economic activity and choice. Through technological innovation, efficiency satisfaction of unit resource can be increased; structure and function of eco-system can be perfected; supply capability of eco-system can be improved. To build the harmonious society, human should consider the reasonable distribution of limited resources from two sides. Thefirst one is that the utilization of two functions of resource supply and pollution purification to nature should not exceed its special supply capability formed under its special structure and function states, i.e. harmony between man and nature. The second side is human being should think over the reasonable and effective distribution of limited resources in economic society, i.e.harmony between human beings and society. The reasonable economic activity of human being is the key to the harmonious development of man and nature.