The invention relates to a magnetic induction pulse fluid flow metering device which comprises a metering device body, wherein a medium diversion cavity is formed in the metering device body. The device also comprises an impeller shaft and impellers, wherein the upper end of the impeller shaft is exposed outside the metering device body, and magnetic steel is coaxially and fixedly arranged at the upper end of the impeller shaft; an even number of equally divided magnetic areas are arranged on the magnetic steel, and magnetic poles of every two adjacent magnetic areas are opposite. The device further comprises a high-magnetic permeability stator piece, bobbin cores fixedly arranged at the two ends of the high-magnetic permeability stator piece, coils wound on the bobbin cores and an intelligent plate connected with the coils and used for acquiring pulse signals on the coils and converting the pulse signals into fluid flow information, a magnetic pole cavity is formed in the high-magnetic permeability stator piece, and the magnetic steel is positioned in the magnetic pole cavity. The device has no requirement on the electric conductivity of a measurement medium, and the medium can be electrically conductive and electrically nonconductive, so that the device is wide in application range, high in measurement accuracy and higher in low-flow test accuracy; in addition, the inner wall of the medium diversion cavity does not need to be lined, so that the manufacturing cost is low.