Abstract: The suitable mechanization transformation is the only way to address the imbalance of the mechanization development in hilly and mountainous areas. The suitability evaluation before initiating the transformation can effectively increase scientificity and targeted effectiveness throughout the transformation process. In this study, six suitability limiting factors including shape index, connectivity, rural buildings, transportation condition, surface roughness, and terrain variability were selected, taking a project in Kaizhou District of Chongqing as an example, a comprehensive evaluation model for terrace mechanization transformation suitability was constructed using Analytic Hierarchy Process（AHP） method, K-means clustering analysis and fuzzy theory on the platform of ArcGIS. The results indicated that the weight ranking of each influencing factor was as follows: terrain variability ＞ surface roughness ＞ connectivity ＞shape index ＞ transportation condition＞ rural buildings. This result provided a basis for subsequent weighted overlay analysis. The comprehensive evaluation result of suitability for the transformation objective was relatively suitable, with suitable, relatively suitable, relatively unsuitable, and unsuitable areas accounting for 41.87%, 44.79%, 12.8%, and 0.54% of the transformation area, respectively. The suitability evaluation method based on ArcGIS can effectively evaluate the suitability of hilly farmland, improve the efficiency of mechanized transformation, accelerate the process of mechanization of hilly farmland.