The invention discloses a novel battery negative electrode. The novel battery negative electrode is characterized in that the novel battery negative electrode is of a composite layer structure, wherein a base material steel belt layer is arranged at the middle of the composite layer structure, alloy powder layers are respectively arranged at two side faces of the base material steel belt layer, and a powder scraping part is arranged on the alloy powder layer on either side of the base material steel belt layer. A preparation method of the novel battery negative electrode comprises the following steps of (1) preparing a negative electrode through sizing and drying; (2) scraping off alloy powder on the alloy powder layer on either side of the base material steel belt layer according to the preset area and thickness, so as to form the powder scraping part; (3) cutting according to the preset size and shape. Application of the novel battery negative electrode comprises the following steps of winding a positive electrode, diaphragm paper and the novel battery negative electrode according to requirements, arranging the alloy powder layers, provided with the powder scrapping parts, of the novel battery negative electrode at the outermost circle, and enabling the powder scrapping parts to be in direct contact with a battery shell after the novel battery negative electrode is put into the battery shell. According to the technique, the contact internal resistance of the battery is reduced; the discharging efficiency of the battery is increased; the use ratio of the alloy powder of the battery is improved; the internal space of the battery is increased; the production cost of the battery is lowered.