The invention discloses a leakage protector for preventing low voltage inverse power transmission. The protector comprises an electromagnetic induction signal generator, a power directional element, an electric signal control loop, and a tripping and disconnecting device, wherein an input port of the electric signal control loop is electrically connected with the electromagnetic induction signal generator, and is electrically connected with an output port of the power directional element, an output port of the electric signal control loop is electrically connected with the tripping and disconnecting device, and an input port of the power directional element is electrically connected with a load line. The leakage protector for preventing the low voltage inverse power transmission disclosed by the invention has the characteristics that 1, the protector has a leakage protection function and a protective function of preventing low voltage inverse power transmission of a user side; 2, the protector has a simple structure and is convenient to install and replace; 3, the practicability is strong, and the safety of the user side and the distribution network overhaul operation is guaranteed; and 4, the input cost is low, the protector is easy to produce, use and popularize, and has a wide application prospect.