Security and protection for process is a hot point in the field of information security, which can be applied to computer security system, anti-virus software, the protection of digital property rights, etc. In the context of information security, this paper summarizes the threats of the process including software threat and hardware threat, and combines the actual case. It classifies the security protection technology for process from hardware and software aspects, as well as analyzes the characteristics of each technology and its shortcomings. Finally the paper concludes the problems in the current research, and looks forward to the future research direction and focus on security protection technology for process.