Abstract: A resistor device has a resistor body, a first electrode assembly and a second electrode assembly. The resistor body has a resistor layer. The first electrode assembly has two first electrodes symmetrically distributed on both sides of the resistor layer, wherein the first electrodes are electrically connected to the resistor layer. The second electrode assembly has two second electrodes symmetrically distributed on both sides of the resistor layer, wherein the second electrodes are electrically connected to the resistor layer, and positions which the first electrode and the second electrode located on the same side of the resistor layer are connected to the resistor layer have an equipotential. The resistor device does not generate voltage drop through voltammetry detection, improves the accuracy of resistance value precision measurement of the voltammetry detection, and thus can be applied to precision circuits that have high requirements on resistance value precision.