In traditional Chinese general concept, Wedding banquet is a place where parents compare wealth and connections, It's also a symbol of life and family continuity and inheritance. This is considered a major consumer activity by two generations, Likely to result in different expectations of each other and a difference. This study uses focus groups and modified Delphi method, Get the suitability of wedding restaurant selection factors and consumption value models. Then used In-depth interviews and content analysis, Understand the reasons for differences in each other's preferences and decisions formed.. Suggest brides and grooms: 1. Think more about guest needs, 2. Communicate with parents, 3. Host two wedding parties. Suggest parents: 1. Don't use the financial support to be communication conditions, 2. Let brides and grooms have decision-making power, 3. Find a wedding consultant company. Suggest industry supervisor: 1. Enhance the quality of projects, 2. Don't give discounts and offers. 3. Precautions network comment, 4. Strengthening employee training.