Aiming at the problem that the amplitude of electric shock current is relatively small and superimposed on the inherent residual current of cables and lamps, which makes it difficult to detect accurately, a multi parameter fusion detection method for street lamp electric shock accident is proposed. By collecting the instantaneous values of the total residual current, lamp current and phase voltage signals of the street lamp system, the normalized characteristic quantities of the residual current component of the suspected personal electric shock accident, the random capacitive residual current component and the change rate of the effective value of the load current are calculated respectively, then the fuzzy logic device is used to fuse these characteristic quantities to obtain the comprehensive characteristics of the personal electric shock accident. The recognition coefficient is compared with the experience threshold to judge whether there is an electric shock accident. The results of experiment and engineering application show that the method can effectively improve the recognition accuracy of electric shock accidents in street lighting system.