In recent years, the scale of distribution network has been expanding, with the increase of casualties caused by high voltage electric shock. The number of serious casualties and deaths caused by electric shock every year is very alarming. In this paper, the zero sequence protection of the neutral point of the distribution network through the small resistance grounding mode is calculated and analyzed by the Matlab simulation software. The analysis shows that the small resistance grounding mode can not deal with the problem of personal electric shock. In order to solve this problem, a neutral point intelligent resistance grounding method is proposed. The method is divided into high resistance, medium resistance and low resistance grounding fault according to neutral point voltage. It can cut off the faulty line quickly and ensure personal safety for human body electric shock high resistance grounding fault. The method is verified by the 10 kV real test field in Luohe. The results show that the intelligent resistance grounding method of neutral point in distribution network has the ability to recognize and deal with 5 000 Ω high resistance ground faults, which can ensure the safety of the human body. This work is supported by National Natural Science Foundation of China (No. 51777015) and Science and Technology Project of Huazhong Branch of State Grid Corporation of China (No. SGHZ0000AJJS1700167).