Abstract: The identification and location of neutral line broken fault plays an important role in the fault diagnosis of low-voltage distribution network, which is conducive to the identification of fault and maintenance rapidly, and protects the personal and property security of users. The large number of distributed generation in the low-voltage side makes the structure of distribution network change. The two-way flow of power and the variation of fault characteristics bring great challenges to the traditional fault identification and location methods. In view of active distribution network, this paper proposes a method of identification and location of neutral line broken fault based on distributed measurement. Firstly, the changes of electric parameters at load side after fault are analyzed. Then, the fault section is preliminary determined by using the changes of load side voltage preliminarily. Finally,the identification and location of fault of the system is integrated determined based on the characteristics of neutral line current and grounding current at system-side under fault condition. This method can solve the misjudgment problem caused by only relying on voltage detection fault at the load side.It also can realize the identification and section location of neutral line broken fault accurately.The results of the simulation analysis show the effectiveness of the method.