The invention relates to a real-time transformer station Scada data access optimization method. According to the method, the multi-thread asynchronous processing technology is employed, an Scada is transmitted to a three-dimensional model in real time to carry out state display, and second-level three-dimensional monitoring is realized; the message data is received from a transformer station Scada, a new thread is created to carry out message analysis processing to prevent an Scada message from being influenced by the processing time, and obstruction of the message information is avoided; a customized performance counter is employed to record processing performance of each stage in a transmission process, the performance counter is analyzed at designated time intervals, intelligent parameter adjustment processing is carried out to optimize performing, and results of the performance counter are outputted for analysis carried out by related staff. The method is advantaged in that in a transformer station Scada data reception process, timeliness, accuracy and stability of the received data are guaranteed, strong guarantee is provided for timely, accurate and visual equipment operation state monitoring in a three-dimensional model system, and reliable data support is provided for operation management and equipment operation condition analysis of the transformer station.