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It is meaningful to research the delineation method of permanent basic farmland on the county scale. The comprehensive model was presented to evaluate the farmland and delineate the border of permanent basic farmland. The hierarchy of the model was firstly introduced accounting for these factors such as natural resources, infrastructure development, social-economic condition and location condition. Then, as a case study, the model was used in Dingzhou City of Hebei Province and the comprehensive scores for the patches were produced. The farmland patches in Dingzhou City might be divided into four regions: priority protection region (PPR), key protection region (KPR), suitable control region (SCR) and further regulation region (FRR). The area of PPR was 28389.22hm2 with scores higher than 76.00. Besides, PPR was distributed mainly in surrounding area of the city and major towns and it was the important grain production base. The area of KPR was 39084.13hm2 with scores between 68.91 and 76.00. Besides, KPR was mainly distributed in Pangcun Town, Daluzhuang Town and Yangjiazhuang Town and it was the important construction area of permanent basic farmland. The area of SCR was 16831.95hm2 with scores between 60.00 and 68.91. Besides, SCR was distributed separately and the diversified land consolidation projects were needed to be implemented. The area of FRR was 5126.82hm2 with scores lower than 60.00. FRR was mainly distributed in west district, north district and Xizong Town and it was not suitable for delineating permanent basic farmland. These results would provide the scientific basis for delineation of permanent basic farmland and the relative basic farmland plans in Dingzhou City.