The invention discloses a high-performance formula calculation implementation method for a power information system. The high-performance formula calculation implementation method comprises the steps:taking a to-be-calculated data item as a parameter according to a data calculation demand in the power information system, substituting the to-be-calculated data item into a predefined formula, carrying out the calculation in a parallel processing mode, and obtaining a calculation result; and storing the calculation result into a storage target table in a cache system according to preset mappingconfiguration. According to the technical scheme provided by the invention, the power information system data of various sources and diversified data structures can be identified and processed, and the data processing requirements of daily complex services are met, and meanwhile, the high efficiency of formula calculation is improved, and high-throughput and high-performance data parallel calculation can be carried out.