Suixi substation is the first 500 kV substation in Huaibei city， Anhui province. The substation is directly managed by the East China Power Grid that requires a higher standard for correctness and rapidness of fault and emergency process with asking for a shorter processing time（report the basic state of the fault in 5 minutes）. In order to adapt to the above requirements， this paper optimizes the fault and emergency process of Suixi substation from viewpoints of professional technique and operation management.