The invention discloses a fake 
identification system of 
bank bills based on 
spectral image analysis, which uses a device and adopts a method of multispectral analysis to excite the anti-fake characteristics on the 
standard samples of 
bank bills so that the anti-fake characteristics, such as paper characteristics of paper, 
fiber, 
watermark, 
printing ink, format, print, writing information and the like, are shown, and finally collects, inputs and establishes a standard 
image database. The 
database is edited by a computer language and then 
application software is generated so as to form the fake 
identification system of 
bank bills together with the device. A plurality of main anti-fake characteristics of the identified bank bills, such as the paper, the print, the 
printing ink, the writing information and the like, can be identified under all different light sources, such as illuminating light sources, main light sources, side light sources, backlight sources, long-wave 
ultraviolet rays, short-wave 
ultraviolet rays, anti-face 
laser, 
infrared light sources and the like. The 
system is applicable to the technical field such as the anti-fake identification of the bills circulating on the market and is capable of detecting all anti-fake characteristic points of the bills. Synchronously, a network supervision 
system is established.