Alloy resistor and preparation method thereof

The invention provides an alloy resistor and a preparation method thereof. The alloy resistor comprises a strip-shaped resistor element and electrodes connected and fixed at both ends of the resistorelement, wherein the electrodes comprises side walls covering the end surface of the resistor element, top walls extending inwards from the upper ends of the side walls and bottom walls extending inwards from the lower ends of the side walls; and the side walls, the top walls and the bottom walls are U-shaped. U-shaped metallic materials and alloy materials are used for forming the electrodes by assembling and welding, so the controllability is high and the product stability is good; and the electrode formation mode by assembling and welding is simple, and can simplify a production flow of theproduct, improve the production efficiency, reduce product cost, and not generate electroplating contamination. 本发明提供种合金电阻器及制造方法，该合金电阻器包括条状的电阻元件，连接并固定在电阻元件两端的电极，所述电极包括覆盖在电阻元件端面的侧壁、自侧壁上端向内延伸的顶壁、自侧壁下端向内延伸的底壁，所述侧壁、顶壁、底壁形成U形。采用U形