The accuracy of high resistance fault location based on single terminal is related to the phase angle of the fault current component at both ends of the fault point and the transition resistance. It is usually solved based on the phase consistency of the fault current component at both ends of the fault point or the gold attribute fault, which often results in large errors. In this paper, the loop equation is deduced by using the relationship between the voltage and current variation at the protection installation point and the voltage before and after the fault point in the frequency domain. The error caused by the phase angle difference of the fault current components at both sides of the fault point is compensated accurately only by using the voltage variation measured at the protection installation point. In order to make full use of the fault information and improve the speed of fault location, the error compensation will be included. The principle of R-L model is transformed into time domain, and the fault distance is solved by continuous sampling integral. PSCAD builds the transmission line model for fault simulation. The results show that the algorithm can solve the error caused by phase inconsistency and accurately detect the fault location when the high resistance fault occurs, and the sensitivity is less affected by the distributed capacitance. This work is supported by National Key Research and Development Program of China (No. 2016YFB0900604) and National Natural Science Foundation of China (No. 51637005).