The rapid development of intelligent information systems and widely used unmanned systems will change the rules and patterns of warfare once again. Security concerns lie behind the development and widespread use of technology. Vulnerabilities in the software and hardware of unmanned flight system and malicious attacks from outside will greatly threaten the security of the system, such as being induced and hijacked by external attacks in various ways. This paper will carry out the security test of GPS spoofing and traffic hijacking for the industrial UAV firstly, and put forward corresponding improvement suggestions. In future work, we will explore more complex unmanned systems security threats, and do in-depth research on the security of unmanned systems.