The development of cultural creativity in Kaohsiung has encouraged the conversion of many old houses and buildings into commercial restaurants in recent years. With the consideration of the continuation of cultural values and the development business and economy, the cultural creativity strategy of internal rituals and external appearance often dictates the position of core values for old houses and the operation of planning and design. The theoretical foundation of this study was established by reviewing literatures of old house reuse. A field survey focusing on characteristics and current status was conducted on 14 cases of converting old houses of 40 years or older into restaurants in Kaohsiung City. The following are the findings: 1. The use of restaurants as the carrier for old house reuse has little impact on the changes in the old houses in terms of structure, and adds the ambience of time experience and spatial perception; 2. The gap between the property ownership and the concepts and values of cultural education allows the development of old house reuse to present the true ambience, over-commercialization and a fictional atmosphere as it is; 3. The cultural creativity strategy of old house restaurants comes in three categories, nostalgia, fusion of old and new, and fictional history, where the most common practice is to incorporate the contrast of old and new elements and the association with historic presentation, indicating the popularity of the fusion of old and new.