Fungi may be simple single-celled creatures or sophisticated multicellular ones. They may be found in almost any environment, although the majority of them reside on land, mostly in soil or plant debris, rather than in the sea or fresh water. Decomposers are organisms that live in the soil or on decaying plant debris and play a key part in carbon and other element cycling. Despite the fact that fungi play an important role in ecosystems, there has been little attention paid to their involvement in urban systems and how fungi may be impacted by urbanization. This review contributes to our understanding of these topics by combining urban fungal investigations with relevant wider research on both fungal and urban ecology. We explain the ecological functions of fungus, such as their positive interactions with plants and animals, based on these findings. We also discuss the ecological factors that may jeopardize fungi's ability to survive in cities. The risks of soil contamination and alterations in the biota that establish connections with fungus are among them. Finally, we examine the possibilities for fungal conservation in cities if their ecology can be understood and conveyed to land managers, as well as possible research directions in this area