The work aims to combine AHP and TOPSIS to construct a dynamic poster design path to enhance the readability of dynamic posters and enhance users' perception of design works. Aiming at the fuzzy problems of the design focus and evaluation of dynamic posters for exhibitions, firstly, the hierarchical analysis method (AHP) was used to weigh and sort the design elements of dynamic posters for exhibitions; Secondly, the key design elements were clarified according to the results of the calculation, and six design schemes were conceived based on them; Finally, the method of approximating the ideal solution ranking (TOPSIS) was used for the design evaluation to clarify the best design scheme. The results indicated that stylistic novelty, visual aesthetics, graphic appeal, content familiarity, thematic interest, and information hierarchy logic were the elements that influence the user perception of designing dynamic posters for exhibitions. The dynamic poster design method of design exhibition integrating AHP and TOPSIS under the perspective of user perception is feasible and scientific, and its research path can provide reference ideas for similar design research or design practice.