Novel magnetic field sensor based on Hall effect

The invention relates to a novel magnetic field sensor based on a Hall effect, which comprises a substrate, a two-dimensional material Hall strip mounted on the substrate and a plurality of electromotive force sensing modules, and is characterized in that the electromotive force sensing modules are respectively positioned at different positions on the two-dimensional material Hall strip; the electromotive force induction module comprises a contact electrode and a wire end which are mutually connected, the wire end is used for being externally connected with a circuit to generate current, and the contact electrode generates electromotive force based on the current of the wire end. Compared with the prior art, the magnetic field sensor has the advantages that the sensitivity of the magnetic field sensor can be remarkably improved, and the miniaturization of the magnetic sensor can be maintained while the performance of the magnetic sensor is improved.