The paper aims to solve the problem that the probability of flight attendants suffering from musculoskeletal diseases increases year by year due to heavy workload and bumpy working environment, and to study the modeling design process of civil aviation dining cart. The safety constraints in the civil aviation dining cart system are determined and the accident risk control-human factor model of the civil aviation dining cart based on the hierarchical model is built; potential unsafe control behaviors in the control model are identified, and the comprehensive weight values of these behaviors are calculated and sorted by AHP. The virtual simulation software is used for human factor analysis and design optimization, and the optimal scheme is obtained. Through the design practice of civil aviation dining cart, the feasibility and effectiveness of this method are verified. By introducing the STAMP model and human factors engineering theory into the preliminary design process of civil aviation dining cart, the safety and comfort of flight attendants in using dining cart for service can be improved, which provides a new idea for developing a new type of civil aviation dining cart that conforms to flight attendants' behavior.