The particle system has unique advantages on the stimulation of the natural phenomena of rain, snow, flowing water and dust, physical phenomena and space warp. The paper discussed using the event-driven particle flow system to stimulate the fountain on the stimulation of fountain on particle system, in which there are disadvantages of by using the non-event-driven particle flow system and lacking of the effects of external factors such as resistance, gravity and the speed of wind. The event-driven particle flow system is made up of a series of events. Every particle flow emitted the particles that will experienced a series of events. In every event we can use operator to the effect of all the changes in particles. Among the tests in the events, the events are connected together. So we can stimulate the water jetting, falling, spray, ripple and the effect of disappear with the wind of the fountain. All these can prove that the event-driven particle system is necessary in producing the realistic scene.