Power-on protection method, module and system

The embodiment of the present invention discloses a power-on protection method, a module and a system. The method includes obtaining installation information and installation configuration file information of a blade server in a blade frame, wherein the installation configuration file information is configuration strategy information about setting the blade server in the blade frame; and detecting whether the installation information is matched with the installation configuration file information and supplying power to the blade server if the installation information is matched with the installation configuration file information, otherwise, not supplying power to the blade server. The misplug and the mixed plugging of the blade server is easily detected according to the installation configuration file information through the power-on protection method, the module and the system provided by the embodiment, thus avoiding the problems such as service abnormity and device fault caused by the wrong plug.