Abstract: In the context of the UEP-IoT, the data scale of the traditional distribution network has been expanded sharply, and the location speed is slow and the accuracy is low. Therefore, a new fault location method adapted to edge computing is proposed. Relying on the distribution automation system, we used the intelligent distributed Agent mode of edge computing, and the interaction between App and matrix-fruit fly optimization algorithm App was automatically recognized through the electric network topology, so that the pressure on the main station was relieved under the premise of ensuring the location speed and accuracy, which greatly improved the reliability of fault location. The results of MATLAB simulation experiments show that for the same network topology, the proposed method has faster location speed and higher accuracy than traditional location methods.