A remote maintenance system comprising: an automatic analyzer (1, 101) including a display adapted to display an alarm screen; a computer adapted to generate an alarm generation information that indicates an alarm generated due to abnormality and alarm deletion information indicating that a customer has deleted an alarm displayed on the alarm screen based on the alarm generation information, wherein the alarm generation information includes an alarm generation time (205, 406, 702) indicating a time of alarm generation; and an information sharing portion adapted to share the alarm generation information generated by the computer and the alarm deletion information with an external alarm maintenance system; characterized in that the external alarm maintenance system comprises an alarm monitoring terminal that includes a display screen and that is adapted to receive the alarm generation information and the alarm deletion information that are shared with the information sharing portion, the alarm monitoring terminal is adapted to display alarm information on the display screen based on the received alarm generation information and to update and display the alarm information based on the received alarm deletion information, the alarm monitoring terminal is adapted to store a first threshold time in advance, when time from the alarm generation time (205, 406, 702) exceeds the first threshold time, the alarm monitoring terminal is adapted to display a notice of need for customer support on the display screen, and when receiving the alarm deletion information before the first threshold time elapses, the alarm monitoring terminal is adapted to not display the notice on the display screen even when the first threshold time has elapsed. an automatic analyzer (1, 101) including a display adapted to display an alarm screen; a computer adapted to generate an alarm generation information that indicates an alarm generated due to abnormality and alarm deletion information indicating that a customer has deleted an alarm displayed on the alarm screen based on the alarm generation information, wherein the alarm generation information includes an alarm generation time (205, 406, 702) indicating a time of alarm generation; and an information sharing portion adapted to share the alarm generation information generated by the computer and the alarm deletion information with an external alarm maintenance system; characterized in that the external alarm maintenance system comprises an alarm monitoring terminal that includes a display screen and that is adapted to receive the alarm generation information and the alarm deletion information that are shared with the information sharing portion, the alarm monitoring terminal is adapted to display alarm information on the display screen based on the received alarm generation information and to update and display the alarm information based on the received alarm deletion information, the alarm monitoring terminal is adapted to store a first threshold time in advance, when time from the alarm generation time (205, 406, 702) exceeds the first threshold time, the alarm monitoring terminal is adapted to display a notice of need for customer support on the display screen, and when receiving the alarm deletion information before the first threshold time elapses, the alarm monitoring terminal is adapted to not display the notice on the display screen even when the first threshold time has elapsed.