With the diversity of various fire accidents, multifunctional fire water guns play an increasingly important role in extinguishing fires and protecting the personal safety of firefighters. Multifunctional fire water guns meet the requirements of "standardization, lightness, efficiency, and universality" in the development of firefighting equipment technology for firefighters, The principle of "overall protection, effective protection, and active protection" has been widely applied in the essential equipment for firefighters in individual combat.