The invention discloses a method and device for detecting a fault of a server. According to an embodiment, the method comprises the steps that a fault bill is obtained, wherein fault accessory information of the server is included in the fault bill; based on the fault accessory information, information of an accessory to be maintained is pushed; maintenance feedback information for the information of the accessory to be maintained is received; whether an operation system of the server is reinstalled or the server is restarted is determined according to the fault bill; based on a determined result, the operation of reinstalling the operation system of the server or restarting the server is triggered; in response to the result that it is detected that the operation system of the server is reinstalled or the server is restarted, fault detection is carried out on the server; a result of the fault detection carried out on the server is presented. By means of the method, the maintenance cycle is shortened, and the efficiency of running maintenance carried out on the server is improved.