Abstract: From the vievpoint of combination theory and practice,this paper has expounded the theoretical bases for the development of eco-agriculture in China.The author points out that chinese ecological agriculture has four characteristice: namely,comprehansiveness,adapatability,high-efficiency and continuity.It is suggested that the technical contents of the characteristics be summarised as follows:pinpointing the production system,perfecting the material circulation,transformation system and improving man-made adaptation system.In addition ten major technical types of the ecological agriculture are discussed in this paper. The author belives that the consruction of the pilot projects in China has shown that the eco-agriculture has exuberant vitality,and is the right way to develop agriculture in China.Then it is pointed out that the eco-agricultrue in China is transforming from sectoral scientific resesarch to social productive practice.Finally it is predicted that 1990s will be a new stage for the construction of the eco-agriculture in China and there will be new breakthroughs in ten aspects.