Visual biological material evidence targeted reagent searching and recording system

The invention provides a visual biological material evidence targeted reagent searching and recording system, and relates to the field of biological material evidence searching and recording systems, which comprises a laser reagent atomizer, a laser host module and a laser handheld module, the laser reagent atomizer is used for atomizing a DNA targeting reagent, so that the DNA targeting reagent uniformly acts on a target area; the laser host module is used for generating laser; the laser handheld module is used for controlling a target area acted by laser, searching and recording material evidences of the target area and acquiring material evidence information; the laser handheld module is internally provided with a wireless communication module and is provided with physical evidence comparison software, so that the laser handheld module can access the fingerprint database for fingerprint comparison. The problem that in the prior art, a biological material evidence searching and recording system cannot carry