Water-Sensitive Urban Design (WSUD) is a broad field of practice that encompasses a wide range of sustainable development goals, from hydrology and water quality management to urban well-being, heat island mitigation, and thermal comfort. Among the measures that have been considered to reduce the production of polluted stormwater runoff, we can mention permeable pavements, rain gardens, rainwater tanks, ditch baskets, green walls and roofs, tree planting, and extensive lawns, etc. The aim of the present study is to investigate the relationship between water-sensitive urban design and green infrastructures (GI) effective in improving thermal comfort. Therefore, the present study, among the strategies of water-sensitive urban design, only identifies and examines the performance of green infrastructures. The research method of the present paper; It is descriptive-explanatory with a qualitative approach and its analysis method is content analysis. Also; in terms of purpose, it is of an applied type and is in the interpretive paradigm. In this regard, its strategy is retrospective, its question is of what type, and information collection was carried out in a theoretical and library manner. The results indicate that on the one hand, the existence of green infrastructure causes storm runoff to flow less in the environment and prevents the resulting damage. On the other hand, the use of storm water will improve the performance and durability of green infrastructure, which greatly contributes to reducing heat islands and improving thermal comfort. Therefore, there is a two-way relationship between water-sensitive urban design and green infrastructure, in such a way that each improves the performance of the other in order to achieve sustainable development.