Disclosed are an optimized alarm processing method and device, and an alarm associated information setting method, wherein the alarm processing method includes: a logic function module detecting an event which can trigger an alarm, and sending an alarm generation request to an alarm generation module; the alarm generation module determining alarm type, alarm path and level of the alarm triggered by the event in accordance with the alarm associated information stored in an alarm associated information storage module; if the determined alarm type is a correlated alarm, first inquiring an alarm memory module and judging whether the next level of alarm on the alarm path to which the correlated alarm belongs is reported or not, if not reported, generating and reporting the alarm; if reported, no generating or reporting the alarm.