Abstract: The correct selection of neutral grounding mode is the technical basis for the safe and economic operation of power system, and its implementation under different conditions is of great engineering significance.In distribution network, neutral point is usually grounded through arc suppression coil or small resistance.The applicability of neutral grounding through small resistance needs to be improved.This paper studies the way of 10 kV distribution network neutral grounding through small resistance, and discusses the applicable conditions of the way of distribution network neutral grounding through small resistance.The research results have theoretical guiding significance and engineering practical value for the application of neutral grounding through small resistance, and have important significance for the safe and stable operation of power system.