Flood disasters in urban areas have become a frequent occurrence, especially in cities with high activities. The climate change phenomenon marked by increased rainfall also triggers the risk of flooding in urban areas. The flood disaster also occurred in the Kaliwungu District, which is one of the urban areas in the Kendal Regency, Central Java Province. The causes of flooding in urban areas is the failure of the drainage system to accommodate flood overflows. System failure in urban areas can affect the functioning of all systems in urban areas. This is supported by the high complexity of the urban system that influences each other, there are physical, social, and economic components of the community. There are two main questions in this research, namely “What forms the relationship between urban systems and disaster risk management?” and “How are urban systems and disaster risk management related to reducing flood disasters? So the aim this research is achieved of this study is to examine the relationship between urban systems and disaster risk management in an effort to reduce flood disasters. This research uses a descriptive case study method, which is based on qualitative material from various sources, including scientific articles, observation of the study site, and in-depth interviews. This study seeks to reveal the relationship between urban systems and flood risk management. The thing that links between urban systems and flood risk management is the main role of urban system functions in efforts to reduce flood disasters through comprehensive and complex disaster risk management. Thus, the urban system and disaster risk management must be interrelated in the preparation of urban spatial plans.