The invention provides a configuring method of a current equalizing resistor for a direct current grounding electrode. The configuring method comprises the following steps of sequentially and serially connecting a direct current power source with a grounding net of a converter station, an electrode line and the grounding electrode; injecting current into the grounding electrode, and maintaining the constant current; measuring the electric parameters of the grounding electrode, and calculating the resistance of the current equalizing resistor; determining a configuring plan of the current equalizing resistor. The configuring method has the advantages that the implementing of the technical scheme is free from the limitation of terrain conditions, the excavation and reforming, the additional land reclamation, and the influence on surrounding environments; the construction is simple, the cost is low, and the reliability is high.