The invention discloses an electric power circuit icing tension imbalance detecting system and aims to provide a system capable of improving the detection efficiency, reducing risks, improving the detection accuracy and reducing labor loss. The electric power circuit icing tension imbalance detecting system includes a tension sensor system (20), wherein the tension sensor system (20) is connectedwith a tension reader (7) through a wire, the tension reader (7) is connected with a communication device (9) through a wire, the tension sensor system (20) comprises a vertical tension sensor system(1) and a horizontal tension sensor system (2), the vertical tension sensor system (1) is arranged between an insulator (3) and a suspension point (4), the horizontal tension sensor system (2) is arranged on one side of the horizontal line of the suspension point (4), and the horizontal sensor system (2) is externally provided with a protective box (18). The electric power circuit icing tension imbalance detecting system is suitable for power maintenance personnel to operate and use.