Cybercrime can be divided into the crime aiming at network, the crime by using network and the crime in cyberspace. All these three types of cybercrime could endanger civil aviation transportation. For those actions of using the internet to spread rumors that have threaten the safety of aviation, if they have caused public disorder in the real world, they can be identified as Defiance and Affray; it they have only led to the chaos in cyberspace, they can be identified as the crime of deliberately fabricating and spreading false information. Those who still provide network technologies for others after knowing that they are committing crimes to harm aviation can be identified as aiding cybercrime or a joint crime. They cannot be defended by the reason of taking a neutral helping behavior.