A new method to identify the counterfeit note based on anti-Stokes effect of infrared laser by experiment is mainly discussed. Under the fundamental of analyzing the basic principles of anti-Stokes effect of infrared laser, an experimental system with tunable infrared laser to measure the anti-Stokes effect of band notes is set up and the experiment of optimum stimulated emitted light-wavelength analysis is finished; the 980 nm infrared laser is used to irradiate the anti-counterfeit windows of the real note and the counterfeit one, and the comparative study of their stimulated emitted light images using CCD is completed. The results of this experiment show that: Under the irradiating of laser, the real note can emerge stimulated emitted light with two wave crests around 640～670 nm and 530～560 nm, respectively, while there is nothing coming up on the counterfeit note; The wavelength of stimulated emitted lights for 10, 20, 50 and 100 yuan RMB are nearly the same; It is effective in identification of the counterfeit note to add an optical filter when the phenomenon is recorded by photographing using CCD. The results of the experiment prove that the technology on identify of counterfeit note based on anti-Stokes effect of infrared laser is feasible, meanwhile, it provides lessons for anti-counterfeit system of note.