Abstract: After three years' hard work organized by ICAO (International Civil Aviation Organization), The Protocol to Amend the Convention on Offences and Certain Other Acts Committed on Board Aircraft (The Montreal Protocol, 2014) was adopted in 2014 as the outcome of Tokyo Convention's modernization. List of unruly behaviors is one controversial topic in the drawing up of The Montreal Protocol. The biggest concerns and most serious behaviors are finally listed in the Article 15 bis. The resolution to update the Circular 288 issued by ICAO was also announced. In reference to the Montreal Protocol and Circular 288, China includes more types of unruly behaviors into the revision of domestic provisions to deal more effectively with these behaviors.