This product is based on the theory of film boiling in "Heat Transfer" and is designed with a heating system, a drip pipe lifting system, and a data acquisition and control system. It is used as an experimental device to study the phenomenon of film boiling (ball boiling evaporation) of water at different droplet heights, droplet sizes, and surface structures. It can conduct a series of experiments based on the Leiden Frost film boiling phenomenon and expand other droplet related scientific research experiments.