Abstract: Inspiration from arteriole controlling sensitively blood flow by changing the ir shape,a novel valve for flow control was designed by distorting elastic water pipe in to a given shape,it can modulaterapidly the flow rate just as arterio ledoes.The performance characteristics of valve,e.g.flow rate,force and deformation,were investi gated.Th is valve can modulate the flow rate from 4mL/min to 0mL/min with in small range of force and deformation（ΔF=0.05N,Δl=0.56mm）.The sensitivity of flow controlmainly results from the change of flow type,i.e.thedeformation of elastic pipe leadsto the formation of turbulence and ca uses the loss of energy in a great degree.The re is a hysteres is of deformation（about 0.8mm）comparing the curve of switch-on with that of switch-off.The novel valve can be utilized as flow controller in the hydrogel-actuated intelligent material structure and system.