This study is titled "A Participatory Public Campaign for Bridging Generational Gaps: Designing Interactive Platforms and Communication Tools for Cross-Generational Dialogue." It stems from the social problem of communication disconnection, stereotypes, and difficulties in collaboration arising from the coexistence of diverse generations, ranging from Baby Boomers to Generation Z, in modern society. To address these issues, the researcher focused on the keyword "Connect," reinterpreting it not merely as a physical union but through Symbolic Interactionism, Gestalt theory, and Design Relations Theory. In other words, design is defined not as the delivery of fixed messages, but as a medium that induces emotional connection and co-creates meaning through user interaction. Analysis of prior research confirmed that age-related stereotypes affect communication satisfaction and that differences in generational language comprehension (e.g., abbreviations, neologisms) act as barriers to communication. Based on this, the study proposes design interventions to bridge the gaps caused by technological changes and differences in values. The core proposal of this project is an integrated on-offline branding campaign designed to enhance intergenerational understanding and foster empathy. The specific solution involves the design of three main elements. First is the "Generational Language Translator." This is an AI-based plugin service that explains or translates nuances in generational language. Similar to how Grammarly corrects spelling, this tool identifies the context of generational language to improve work efficiency and reduce misunderstandings in the workplace. Second is the "Interactive Web Platform." It is built as a digital space where users can participate to understand and experience generational differences, with plans for continuous improvement based on exhibition feedback. Third is the design of merchandise, such as "Badge Stickers for Participants," to encourage campaign participation and instill a sense of belonging. All these design elements are planned to function as experimental tools for discourse by applying participatory design methodology. Beyond simply resolving generational conflict, this study explores the potential for commercialization as a tool for intergenerational integration programs in public or educational institutions (middle/high schools and senior lifelong learning centers) or for improving organizational culture in companies. The overall schedule plans for the establishment of the logo and brand identity and 70% completion of the platform design in September, the Master Degree Show and secondary research in October, data analysis and thesis writing in November, and final thesis defense and submission in December. In conclusion, this project aims to contribute to creating a sustainable communication environment based on mutual respect and understanding by bridging the psychological distance between generations through design.