Ice-over resistant on-line decision method of transmission line load circuits

The present invention discloses an ice-over resistant on-line decision method of transmission line load circuits, in the method: 1. data collection; 2. calculation; 3. current calculation; 4. stable calculation; 5. on-line decision. Time needed by the ice-over resistance of a transmission line which uses load circuit ice-over resistance can be calculated at the same time, and the above information is synchronously displayed at a normal image or form type. On the premise that the safe and stable running of an electric fence can be ensured by using the method, the advantage of load circuit ice-over resistance is sufficiently exerted, and the labor strength for dispatching running staffs is reduced; the load circuit ice-over resistance is automatically decided whether can be used on line, so the safety risk brought by load circuit de-icing for the electric fence is reduced, and large social benefits and economic benefits can generate.