Micro-Raman Spectroscopy is regarded as is an effective, noncontact technique with micrometer spatial solution for strain measurement,1 but is restricted to those so-called Raman-active materials whose spectra have typical and visible Raman modes sensitive enough to strain.2 This limitation may be break by using Raman-active materials as sensing media.As a new Raman-active material, Carbon nanotubes(CNTs) are potential for sensing strain34 because of their outstanding mechanical5 and spectral6 properties.