Based on the theoretical and experimental analysis of infrared-visible up-conversion materials an infrared laser anti-counterfeiting recognition system based on the phase-locked amplifying technology is prepared. The transmitter is composed of constant voltage source,frequency generator and infrared laser diode. An electricity signal with given frequency is modulated on infrared laser diode. The assigned frequency is 800 Hz,and the wavelength of peak value of infrared laser is 975 nm. The receiver part is composed of optilcal filter,photosensitive tube,prepositive filter,phase-sensitive detector,low pass filter and comparator. The receiver can detect the up-conversion visible light. The center wavelength of the filter is 553 nm. The results show that the system is feasible for recognizing of the fifths RMB,new edition Pound,new edition Vietnam currency,some expensive cigarette and wine. Because of the advantages of high reliability,small volume,low price,easy spread,and simply integration,the recognition system would play an important role in the action of cracking down on counterfeiting offenses.