Abstract: Provided is an information acquisition system, an information acquisition method, or the like that can realize smoother acquisition of biometric information. The information acquisition apparatus is arranged in a first section where a first subject stands by and has a first reading unit that reads and acquires identification information from a medium carried by the first subject in the first section, a biometric information acquisition unit that acquires biometric information on the first subject from the first subject, and a first information management unit that transmits, to the server, person information including the identification information and the biometric information associated with each other. The server has a second information management unit that registers, to a database, the person information transmitted from the information acquisition apparatus.