The invention discloses a carbon fiber composite core optical fiber wire strain clamp which comprises a wire clamp body, a steel anchor, a drainage plate fixedly connected to the outer wall of the wire clamp body, and an optical fiber protection box. The wire clamp body is a hollow tube, one end in the wire clamp body is fixedly connected to a wedge clamp support which is internally provided with a matched wedge clamp, and the other end in the wire clamp body is equipped with a liner tube. The steel anchor is arranged at one end close to the wedge clamp support and is threadingly connected to the wire clamp body, and the steel anchor is internally provided with an arc-shaped through hole. One end of the arc-shaped through hole communicates with the wire clamp body, and the optical fiber protection box is internally provided with more than two winding columns. Through arranging the arc-shaped through hole in the steel anchor, the structure can withstand wire tension and fix a wire, an optical fiber can be protected, the damage to the optical fiber due to exposure and an excessive angle is prevented, thus a line connection mode is improved, and a high performance signal transmission function is realized.