The results showed that there was a relationship between water temperature and the presence of larvae with a value of p = 0.000, there was a relationship between water pH and the presence of larvae with a value of p = 0.019 and there was no relationship between dissolved oxygen (DO) and the presence of larvae with a value of p = 0.572. It is expected that the Makassar health department to provide supervision and provide guidance to the community to focus more on eradicating mosquito nests and the community should always pay attention and routinely monitor water quality in water reservoirs that affect the density of mosquito larvae.