Wireless electromagnetic current meter

The invention discloses a wireless electromagnetic current meter, comprising: an electromagnetic current meter, used for converting liquid flow rate data into voltage signals; a signal processing module, used for converting negative voltage signals in the voltage signals into positive voltage signals, performing amplification and filter shaping, and converting the voltage signals into digital signals; a microcontroller module, used for controlling parameters used in the signal processing process of the signal processing module, and formatting the digital signals output by the signal processing module according to a communication protocol; and a wireless data transceiver module, used for wirelessly transmitting the formatted digital signals to the outside, and forwarding the parameter data transmitted by the outside and used in the signal processing process to the microcontroller module. The wireless electromagnetic current meter transmits data in a wireless mode so as to save early fussy wiring process and reduce the cost, and has high measurement precision.