The invention proposes a simulated environment-based vulnerability verification method and system. The method comprises the steps of establishing a simulated environment for verifying a vulnerability, and storing configuration information of the simulated environment in a template library in a template form; packaging templates in the template library in a set format; and creating instances of the simulated environment according to the packaged templates, and verifying the vulnerability through the instances. According to the simulated environment-based vulnerability verification method and system, the resource utilization rate of a vulnerability verification experiment is effectively increased and the working efficiency and quality of vulnerability verification are effectively improved.