The research on fault location of overhead line and power cable is reviewed. Firstly the special problems in fault location of hybrid transmission lines are analyzed, and then the research status of fault location methods for hybrid transmission lines is summarized. The existing methods of fault location for hybrid transmission lines mainly include fault analysis, traveling wave method, frequency analysis and intelligent method. Among them, the accuracy of fault analysis method and traveling wave method is mainly affected by the uneven parameters of the hybrid transmission line. For frequency method, whether the natural frequency of fault transient signal can be determined accurately directly affects the fault location accuracy of spectrum analysis. The offline training of the sample set and the storage of a large amount of data is required for the intelligent method. Finally, the future research work is prospected.