The invention discloses an intelligent substation SCD document rapid analysis method. The intelligent substation SCD document rapid analysis method comprises the steps that a SCD document is loaded, node data of the SCD document adopt a deep-analysis and shallow-copy method, and a tree structure object is established; the data extraction is conducted according to the tree structure object, and a global hash table is established; all node data in the SCD document are searched rapidly according to the mapping relation of the global hash table. According to the intelligent substation SCD document rapid analysis method, the memory overhead is reduced, the time consumption is lowered, and the searching efficiency is improved.