The probability of single-phase grounding fault is the highest in the distribution network, however the locating of single-phase grounding fault in distribution network has not yet been satisfactorily resolved. Therefore, it is of great significance to study the fault locating of single-phase grounding in the distribution network. So far, a variety of locating methods are proposed and the relevant devices are developed. This paper reviews mainstream locating technologies, introduces the principle, the advantages and the disadvantages of each method briefly.