The purpose of this paper is to guarantee a distribution automation system (DAS) to make a sound fault processing for various situations in the practice. A simplified model for fault location and service restoration is established. A simplified model for fault location and service restoration is improved. A robust fault location flow chart is established, in which distributed generations (DG) and information mistaken are considered for both open-loop and close-loop contribution grids. The criterions to identify whether the multiple faults could be located separately are put forward. The short-time restoration scheme considering the load fluctuation during the reparation is suggested. The flow chart of appropriately choosing the short time service restoration, the real time service restoration, the service restoration with minimum load shedding, the modeled service restoration and the restoration scheme for inter-phase to ground fault is described. The flow chart of inter-phase short circuit fault processing is designed, in which the fault location, isolation, restoration, sequence of switches to be tele-controlled and correction program in case of control failure are included. Examples are given to illustrate the proposed methods, showing the feasibility and effectivity. This work is supported by Science and Technology Project of State Grid Corporation of China (No. 5226SX13044H).