The invention discloses a streaming method for wide area distributed type data in a power dispatching automation system. The method comprises the following steps that: splitting the real-time data processing full process of the power dispatching automation system into a plurality of sub-processes, and arranging a streaming data processing unit for each sub-process; according to business logic, connecting each streaming data processing unit in series to form a stream topology; and starting the streaming data processing units, and continuously obtaining the real-time data of the power dispatching automation system to enable the data processing process to continuously work according to the stream topology so as to finish the processing of the real-time data of the power dispatching automationsystem. By use of the method, the reuse rate of the data processing result is improved, a data-driven real-time data processing system is realized, the system has the characteristics of being high incohesion and low in coupling, and the data throughput rate of the power dispatching automation system is improved.