Now conservation tillage can not be applied on a large scale in China due to the diversity of region and the various types of this technology. Aiming at the problem, the index system of suitability regionalization for no-tillage which belongs to conservation tillage was developed. And then case study was carried out in Wuchuan County where the ecological environment deteriorated gradually. GIS was applied, combined with such methods as AHP weight, cluster analysis, and so on, to divide Wuchuan County into three parts. Finally, the division results are proved to be reasonable. This will undoubtedly provide some references for the suitability regionalization research of other conservation tillage types.