An identifiable ticket contains: a body and a radio frequency identification (RFID) tag attached on the body. The RFID tag includes a chip and an antenna, the chip stores an identified message, and the antenna is electrically connected with the chip. The body includes a ticket stub and at least one separable part removable from the ticket stub so as to tear off the antenna, hence the RFID tag responds reading operations of at least one tag reader in different frequency bands and distances after the antenna is torn off or based on a length of the antenna. A monitoring system for the identifiable ticket contains the identifiable ticket, a computer, and the at least one tag reader. The at least one tag reader is connected with the computer and reads the RFID tag so as to acquire and to send the identified message to the computer.