蚁群算法是一种求解组合最优化问题的新型通用启发式方法，该方法具有正反馈、分布式计算和富于建设性的贪婪启发式搜索的特点。通过建立适当的数学模型，基于故障过电流的配电网故障定位变为一种非线性全局寻优问题-Ant colony algorithm is a combinatorial optimization problem to solve a new type of general-purpose heuristic method, the method has positive feedback, distributed computing and constructive greedy heuristic search features. Through the establishment of appropriate mathematical model, based on the fault over-current distribution network fault location into a nonlinear global optimization problem