This research mainly is nonwoven using the hot blast, SAP, and PVC pipe to complex the water absorbing composite pipe, when applies to the under-drainage tubing, but effectiveness achieves the water resources the application. And discusses the fitting to take shape influence factor the way and the drainage system. May know by the experimental result, the draining water effect increases along with the nonwoven layer decreases, but if use monolayer nonwoven, strength and durability are not enough. As fills the material take the SAP, the PVC pipe for the base material compound drainaging water pipe, the draining water efect is better than the former absorbing pipes.