In this paper,there are four kinds of agro-ecological geology models founded by being evaluated to varied geological resources and geological environment,which are optimizing model,sub-optimizing model,worse model and the worst model.

Agroecological geology groups and types are a comprehensive result from agroecological geology investigations, and are the basic units for the investigation and mapping.

Evaluations and empirical studies on the regional suitability of "Four-in-One" eco-agricultural models;

From both theoretical and practical point of view,the techniques for the con-struction and methodology of courtyard eco-agricultural model are discussed.

On the basis of synthesizing many scholars opinions,the conception and research significance of eco-agricultural model were pointed out and the research progress was reviewed.

The main problems of agriculture developing in southern area of Ningxia are analyzed,the experiences of 20 years experimental area in the area are sunmed up,and four different eco-agriculture models are put forward.

Through analyzing the economic,ecological and social benefit produced from the ecological agriculture pattern in Jinjitan town,we propose the promotion of ecological agriculture pattern with methane as the link.