Abstract: Composites reinforced with Shape Memory Alloy(SMA)wires employ the SMA wires as distributed actuators to achieve adaptive functions while in service.This paper presents at heoretical study on the thermo-mechanical characteristics of composites reinforced with SMA wires,based on the one-dimensional constitutive relation of SMA.Experimental results derived from tension,free recovery and rest rained recovery of composites reinforced with SMA wires are also presented and compared with the simulated results.