Water through pre-wet fiber net enter spunlace area. The blowhole of water board of spunlace head vertical ejected stranded micro water jets. Water jet makes part of the surface of the fiber in fiber net is placemented when the water jet through the fiber net because the rebound effect of bottom apron or tumbler, use different directions scattering to the opposite side of the fiber net. In the water jet direct impact and rebound flow occurrence displacement, interspersed, tangles, cohesion in fiber of fiber net, formed numerous flexible entanglement points, then fiber net got reinforcement. This simulation studies use FLUENT-3D solver calculations with a three-dimensional needle-type nozzle and use k-epsilon model to observe the various states of the fluid flow of nozzle. The results showed that the nozzle velocity will affect exports pressure distribution .