Abstract: Cryofluography is a technology by using photographic method to record the fluoroshadowgraph of material evidence excited in the low temperature. As the common flourography, it takes the advantage of photoluminescence to show. The implicit material evidence but overcome it's shortcomings including fluoro-briliance of being photoraphied materials is too dull, particular features of material evidence can not reappear, etc. also it not only can increase the contrast of material evidence, but doesn't have any destruction to materials which are to be examined. It is a very efficient technical medium in material evidence examination. The methods types and application of cryofluography in material evidence examination were expounded mainly.