The invention belongs to the field of reliability of flight control computers for aviation unmanned planes, and specifically relates to a reliability verification method for a flight control computer, and a platform. According to the invention, a method which can achieve the reliability analysis of the flight control computer on a virtual platform through combining with a virtual flight control computer system is implemented. The method comprises the steps: obtaining a system fault tree in a mode of comprehensive fault injection with the help of the characteristics of the virtual platform; obtaining the failure probability and distribution models of the system and each function module through a probability distribution model of a fault tree bottom event, i.e., obtaining the reliability of each function module and the virtual flight control computer and the overall reliability of the virtual flight control computer, and achieving the effective analysis of the reliability of the flight control computer.