A method for measuring magnetoresistance of metals and metallic alloys in a pulse magnetic field of high intensity is presented. The accuracy of the sample magnetoresistance &Dgr; &rgr;/&rgr;0is ±12% and ±5% for &Dgr; &rgr;/&rgr;0values of 10−3and 10−1, respectively. This accuracy can be achieved for sample resistances of the order of 10−1–102&OHgr;.