Abstract: Drop in liquid surface of vertical excitation is possible to stay in the surface for a long time. Based on the experiment，we study the effects of various factors on the survival time of the droplets. The results show that the droplets may survive for a long time under appropriate values of the driving frequency，driving amplitude and liquid drop height. In addition，the survival time of the droplets depends on the liquid concentration.

Key words: vertical excitation, droplet, survival time