The present invention discloses a portable
adenosine triphosphate
fluorescence detection device comprising a housing consisting of an upper housing and a lower housing, a cover capable of opening / closing and deposited above the housing, a
liquid crystal window and a keyboard which are deposited at the upper housing acting as a panel of the device; a circuit board used for performing a
fluorescence detection and mounted inside the housing, with a
liquid crystal screen, a
photodiode, a shielding case and a light trap
metal block being mounted thereon, wherein the
photodiode is arranged inside the light trap
metal block with its the other terminal being connected to a test-tube repository, and a first microswitch and a second microswitch are also mounted at the circuit board. The
control circuit comprises a
fluorescence detection module, a
data acquisition module, a human-computer interface, a power supply module, a control module and the like. Said fluorescence detection module is used for detecting the intensity of fluorescence generated by a reaction of ATP in living
microorganism body and fluoresceins and
luciferases in the detection
reagent, and the
data acquisition module is used for converted the
fluorescence intensity detected into a digital quantity to ascertain the
ATP content, then the presence and content of
microorganism is capable of being indirectly ascertained by controlling
system analysis and
processing and saving data.