In the process of urbanization, many industrial facilities are idle or abandoned due to the adjustment of industrial structure, resulting in resource waste and environmental damage. At the same time, with the advent of the experience economy, consumers consumption concepts and lifestyles have changed. Their demand for space is no longer just to meet basic functions, but also to pay more attention to the quality and experience of space, under the theme of culture and art, many complex cultural spaces with functions such as exhibitions, sales, performances, and experiences have begun to be created, and the trend is increasing. Therefore, the common theme of current urban innovation and industrial transformation is how to utilize idle industrial facilities and transform them into creative and distinctive spaces, while meeting the diverse needs of consumers and promoting sustainable development of cities. The research method is as follows. In this study, methods such as literature review, case analysis, and expert interviews were used to collect and analyze the value and characteristics of regeneration of idle industrial facilities, the concept and characteristics of complex cultural spaces, and the concepts and characteristics of experience design. Based on this, six key characteristics of the experience design of a complex cultural space utilizing the regeneration of idle industrial facilities were derived. Through these six key characteristics, we investigated and evaluated the experience design of a classic case of a complex cultural space regenerated in a domestic idle industrial facility. According to the research results, Through prior research, literature, and case studies, it was concluded that the six main characteristics of experience design for complex cultural spaces utilizing the regeneration of idle industrial facilities are historical preservation, functional complexity, openness, association, sensory, and interactivity. Six cases of converting idle industrial facilities into complex cultural spaces were analyzed, and the spatial experience design of each case was evaluated in terms of six major characteristics. As a result of the investigation, it was found that each case had advantages and disadvantages, with F1963 having the highest overall score and Seongsu-dong Seongsuryeonbo having the lowest. This article also made suggestions for improving the experience design of complex cultural spaces, mainly by adding historical and cultural elements and interactive design means. Based on this study, future research will specifically suggest the utilization of various differentiated experience design elements of complex cultural spaces.