Human society has gone through three revolutions of agriculture, industry and ecology.Now it is entering into the ecological society and is building the new ecological civilization. In this new epoch, people's economic thought and economic behavior should be guided by the thought of the coordination between ecology and economy, and follow the road of sustainable development. For this purpose, the effectiveness of agricultural resources utilization should be regarded as the basic point of rational use of agricultural resources. The use should be active, economical and sufficient. According to this, in practice, the agricultural resources should be used widely, deeply and moderately.