It is an object to provide a system for a service department to contact a customer for improving customer service when it is determined that the customer has difficulty in handling an alarm by themselves in the case where the alarm is generated due to abnormality of an automatic analyzer and the automatic analyzer is deactivated. The automatic analyzer includes: a display to display an alarm screen; a computer that generates alarm generation information that indicates that an alarm has been generated due to abnormality and alarm deletion information that indicates that the customer has deleted the alarm displayed on the alarm screen based on the alarm generation information; and an information sharing portion that shares the alarm generation information and alarm deletion information that are generated by the computer with an external alarm maintenance system.