From the perspective of intergenerational rela-tionship and using emotional design as the starting point,this paper analyzes emotional problems in intergenera-tional relationship and puts forward the way to express intergenerational emotion interaction in book design.The intergenerational ideological estrangement state,emotional communication contradiction state and role relationship ex-change state extended by intergenerational emotion prob-lems are integrated into book design to be condensed into emotional visual design language,and further emotional transmission is realized through the design of interactive form and the integration of special materials,triggering readers'emotional resonance.Finally,taking the emotional book design as an example,it discusses the practical appli-cation of this design idea in intergenerational relationship.