The existing lawn mower equipment is complicated to operate, has certain potential safety hazards, and has a low degree of intelligence. The paper aims to solve such problems, functionally innovate the existing intelligent lawn mower robot equipment, and obtain a more scientific intelligent lawn mower design plan to provide users with convenience. Through user research, design points of intelligent lawn mower robots are sought; combined with Analytic Hierarchy Process (AHP), evaluation models and judgment matrices are established, and the weight value of design elements is obtained. 3 design models are output, percentile calculations are carried out through fuzzy evaluation, and smart lawn mower design schemes are evaluated and screened. Through the evaluation model of the intelligent lawn mower scheme design, the design scheme is optimized, and the intelligent lawn mower scheme satisfactory to the user is designed. The application of Analytic Hierarchy Process (AHP) and fuzzy evaluation method effectively reduces the influence of human factors in the design process of intelligent lawn mowers, making the design procedures clearer and more reasonable. The safety, environmental applicability and intelligence of the lawn mower are improved, and the optimal design scheme is obtained. At the same time, it also provides new research directions and theoretical references for the field of outdoor mobile robots.