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This paper introduces the remote current and voltage monitoring system based on cloud storage and 5G wireless communication technology, including acquisition module, data processing module, Ethernet module and terminal; Acquisition module acquisition device of three phase current and three-phase voltage being measured, by matching the operational amplifier to convert signals AD input circuit, then the measured data of voltage and current fast Fourier transform, then the main frequency component amplitude and phase of signal transmission to the Ethernet module, realize the transmission of high compression test data. The data of voltage and current can be read and recorded by accessing Ethernet module through terminal and Internet of Things platform. Thus, a remote automatic monitoring system for voltage and current of electromechanical equipment and their operating conditions is proposed.