Abstract: A method and system for reporting lost baggage in real time is capable of rapidly finding a lost baggage for a passenger. A service station provides a 24-hour service phone number. A baggage tag is attached onto the passenger's checked baggage. The 24-hour service phone number of the service station, and a mobile phone number and a passenger name provided by a passenger are imprinted onto the baggage tag. When the baggage is lost, the mobile phone is turned on to receive a call form the service station for the lost baggage, and the service station receives a call with the 24-hour service phone number on finding the lost baggage and records the mobile phone number and the passenger name on the baggage tag of the lost baggage, so as to call the mobile phone according to the mobile phone number about the lost baggage.