Device for determining live/dead bacterial state, and method for determining live/dead bacterial state using said device

Provided is a device for determining the live/dead bacterial state, with which it is possible to ascertain the accurate state of live bacteria/dead bacteria via a captured image in a relatively easy operation with which ascertaining the state of a bacterial cell is more accurate than conventional methods. This device for determining the live/dead bacterial state comprises: a case body in which a measurement mechanism is housed; an opening/closing lid body that allows a fungus base insertion port formed in the case body to be opened and closed; and the measurement mechanism, which is housed in the case body and is configured to measure the number of bacteria. The measurement mechanism comprises: a fungus base holding mechanism that inserts and fixes a fungus base on which a bacterial cell collected from a specimen is placed; an excitation light irradiating mechanism configured so as to be capable of focusing and irradiating an excitation light toward the bacterial cell on the fungus base; an imaging camera dis