Abstract: PZT/NiTi composites were prepared by the method of depositing NiTi films on the PZT substrates by magnetron sputtering method. The phase structure and heterostructure of the composites were examined by using X-ray diffraction (XRD) and scanning electron microscope (SEM). A phase method was utilized to research on the damping capacities of PZT/NiTi composites. The results show that the change of damping capacities of PZT/NiTi composites is consistent with PZT, besides appearing a fancy platform about damping value.