A biological information measurement device configured to continuously measure biological information from a living body with being worn on the living body, the biological information measurement device comprising: a speaker or a display unit; a storage control unit configured to perform storage control of the measured biological information in a storage medium; an input unit for inputting identification information necessary for personal identification; an information input request unit configured to request an input of the identification information by the input unit at each of a plurality of timings after measurement of the biological information is started, by outputting message information for requesting the input of the identification information by displaying the message information on the display unit or by a voice from the speaker; a personal identification unit configured to determine whether a user wearing the biological information measurement device is a pre-registered person in synchronization with each of the plurality of timings, based on the identification information input by the input unit; an identification result information generation unit configured to generate an authentication success rate which is a ratio of a second number of times that the user is determined to be the pre-registered person by the personal identification unit to a first number of times that the request is made by the information input request unit, or an authentication failure rate which is a ratio of a third number of times, which is obtained by subtracting the second number of times from the first number of times, to the first number of times, as identification result information; and a correctness determination unit configured to determine correctness of the biological information stored in the storage medium on the basis of the identification result information. a speaker or a display unit; a storage control unit configured to perform storage control of the measured biological information in a storage medium; an input unit for inputting identification information necessary for personal identification; an information input request unit configured to request an input of the identification information by the input unit at each of a plurality of timings after measurement of the biological information is started, by outputting message information for requesting the input of the identification information by displaying the message information on the display unit or by a voice from the speaker; a personal identification unit configured to determine whether a user wearing the biological information measurement device is a pre-registered person in synchronization with each of the plurality of timings, based on the identification information input by the input unit; an identification result information generation unit configured to generate an authentication success rate which is a ratio of a second number of times that the user is determined to be the pre-registered person by the personal identification unit to a first number of times that the request is made by the information input request unit, or an authentication failure rate which is a ratio of a third number of times, which is obtained by subtracting the second number of times from the first number of times, to the first number of times, as identification result information; and a correctness determination unit configured to determine correctness of the biological information stored in the storage medium on the basis of the identification result information.