The work aims to propose a bookcase design method based on AHP/QFD/TRIZ integration theory, in order to solve the design contradiction under different users' emotional needs, improve users' comprehensive satisfaction and optimize the traditional modular bookcase design. Firstly, literature research method and market research method were used to collect and screen out users' needs, and KJ method was used for conclusion. AHP was used to establish the emotional hierarchy model and calculate the weight of needs. By QFD, the users' needs were transformed into the corresponding technical characteristics, and the corresponding importance degree was calculated and 5 contradictions were obtained. According to the physical contradiction and technical contradiction in TRIZ theory, the best invention principles corresponding to the five contradictions were selected. Finally, the bookcase design strategy was formulated, the overall module unit classification and reconstruction were carried out, and the preliminary scheme was refined to obtain the final product design scheme. Through the design process of AHP/QFD/TRIZ integration theory, the contradiction between users' comprehensive emotional needs and design is solved efficiently, scientifically and logically. This method provides a reference for the design of other similar products.