The invention discloses a line lightning strike fault pole selection method for two-end bipolar high voltage direct current transmission. The method is characterized by comprising the steps of (1) calculating the integral value of each voltage jump amount of positive electrode and negative electrode direct current power transmission line rectifier sides at a given data window length and calculating an absolute value corresponding to the integral value, (2) calculating an average value of the absolute values, substituting the average value into an algorithm starting criterion, starting an algorithm and going to step (3) if the starting criterion is satisfied, otherwise not starting the algorithm, and returning an initial state, and (3) calculating a ratio of a positive electrode absolute value to a negative electrode absolute value in step (1), substituting the ratio into a single end pole selection criterion of direct current line lightning fault, and thus judging whether the fault occurs. The method has the advantages of a small calculation amount and a simple and reliable algorithm, the communication time is saved, a possible communication error of a double-end criterion is avoided, and the method has an engineering practical significance.