The present invention provides an intelligent ammeter field data analysis system. The system comprises a control cabinet, an industrial control computer and a plurality of intelligent ammeters; the industrial control computer is configured to uniformly obtain the data of all the intelligent ammeters and perform data analysis and calculation, and the industrial control computer includes a parameter analysis module, an operation state analysis module, a historical electric quantity analysis module and an event recording analysis module; an intelligent ammeter includes an ammeter body and a data storage module; and the industrial control computer and each intelligent ammeter are connected through a serial port connection line, and a shielding sleeve is arranged at the outer side of the serial port connection line. The intelligent ammeter field data analysis system realizes the networking between the intelligent ammeters, and the industrial control computer can uniformly obtain the data of all the intelligent ammeters and perform the data analysis and calculation so as to reduce the operation and maintenance staff's workload and improve the work efficiency.