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Aiming at the problems of imperfect mechanized production system, complex and diverse production models, and lack of systematic evaluation in the hilly and mountainous areas of Southwest China, taking the main body of agricultural management as the research object, a “farmland + agricultural machinery + agronomy + information” was constructed from the perspectives of moderate scale, high production efficiency, and ecological friendliness. Four-integrated evaluation system of mechanized production mode in hilly and mountainous areas of Southwest China, which included six dimensions and 15 tertiary indicators, including suitable mechanization of farmland, moderate scale operation, quality of agricultural machinery equipment, degree of intelligence of agricultural machinery and equipment, agricultural machinery production efficiency and farmland health. The weights were determined by the AHP and CRITIC methods;four typical models of wheat/corn mechanized production in Southwest China were selected for evaluation and comparison based on farmland endowment, mechanical equipment as the core, and scale benefit as the guide. The results showed that under the mechanized production mode (M1) of the key links of ordinary farmers, the plots are small and the terrain is undulating, and the machines and tools can only use small and low-efficiency machinery;the application rate of chemical fertilizers and pesticides was higher than the standard value, and its operation scale and development mode cannot be used. The mechanized production mode (M2) of family farms with strip compound planting realized the mechanization of farmland contiguous operation and field production. However, the technology of strip compound planting and harvesting equipment was not yet mature, resulting in the overall operation efficiency of the model being lower than that of the cooperative model. The model can improve land utilization and increase grain production, and it was suitable for promotion in family farms;under the “full mechanization + digitalization” production mode (M3) of cooperatives, large and medium-sized machinery can give full play to operational efficiency and fuel efficiency in farmland after mechanization transformation. Efficiency advantage, at the same time, post-production drying and primary processing improved grain quality and efficiency, and realized the mechanization of the whole process of pre-production, production and post-production. In addition, the digital management system effectively improved the efficiency of agricultural management and equipment use. This model was suitable for cooperatives in hilly and mountainous areas. The whole-process mechanized production mode (M4) of large-scale cooperatives’ planting and breeding cycle realized an agricultural industrial chain combining planting and breeding on the basis of the whole-process high-efficiency mechanical empowerment. The silage straw produced by cooperatives was sold to dairy farms for production. The feed was processed, and the organic fertilizer produced by the dairy cows was supplied to the cooperative for recycling. This model realized ecological and economic farming and was suitable for promotion in some large farming counties. The comprehensive evaluation values of the four modes were 0.31, 0.67, 0.86 and 0.79, and the order from large to small was as follows: M3, M4, M2 and M1;the evaluation results were in line with the reality, and the index system can objectively evaluate the characteristics of each mechanized production mode, which can be used for the selection and improvement of the mechanized production mode of each operating entity in the hilly and mountainous areas of the southwest, which provided a theoretical basis, and it was further improved in practice.