The protection zoning of cultivated land resources is an important basis for scientific implementation of cultivated land protection and guiding the sustainable utilization of cultivated land. Taking Jinzhong City as the study area, the evaluation indexes for cultivated land partition were constructed from the three dimensions of cultivated land form, spatial structure and cultivated land function. On the basis of three dimensional feature coupling analysis, the cultivated land protection area of Jinzhong City was divided into four types. The results showed that the cultivated land form was under the influence of geomorphology. The aggregation patches were mainly distributed in the Fen River valley and the loess accumulation geomorphologic area, while the diffuse patches were distributed in the denudation tectonic and the denudation erosion geomorphologic areas. There was a weak positive spatial correlation among the quality of cultivated land in Jinzhong City, in which the HH and LL aggregation types were main types. The HL and LH types were scattered in various regions. The functional coordination area were mainly distributed in the western Jinzhong City，with great potential for comprehensive utilization of cultivated land，while the functional incoordination area involved four counties. The incoordination was featured by two conditions of either the ecological function was higher than the productive and economic functions or the economic function was higher than the ecological and productive functions. According to the three-dimensional coupling classification of form, structure and function, the cultivated land protection area of Jinzhong City was divided into permanent cultivated land construction area, potentiality of land consolidation area, agricultural structure adjustment area and ecological de-farming area. The permanent cultivated land construction area was the main agricultural production area of Jinzhong City.