This biological sample measuring device has the display screen of a display section (2) divided into a first display area (2a) that displays measurement values, and a second display area (2b) that displays the operating status. When the scheduled maintenance is near, a controller (9) displays an scheduled maintenance warning in the first and second display areas (2a and 2b) upon the first start-up that day, and displays an scheduled maintenance warning only in the second display area (2b) upon the second and subsequent start-ups that day.
