The utility model discloses a grounding wire clamp based on shield locking and a temporary grounding wire, and belongs to the technical field of power transmission line maintenance. The grounding wireclamp comprises a clamp body (4) provided with a clamping opening, the clamping assembly comprises an adjusting end for adjusting the clamping state of the clamping assembly, and the grounding wire clamp is characterized in that the grounding wire clamp is provided with a grounding wire clamp base, and the clamp body (4) is fixed to the upper portion of the grounding wire base and exposes the clamping opening; a protective cover (1) is installed on the upper portion of the grounding wire clamp base, and after the protective cover (1) and the grounding wire clamp base are installed, the adjusting end is arranged in the protective cover (1) in a covering mode and locked through a lock body arranged in the grounding wire clamp base. According to the grounding wire clamp with the locking function and the temporary grounding wire, by arranging the protective cover, the temporary grounding wire is effectively prevented from being used in a mixed mode, the temporary grounding wire is effectively prevented from being detached accidentally in the working process, industry operation regulations are implemented, and potential safety hazards during working are greatly reduced.