Wire harness clamping piece, wire harness assembly and wire harness assembly

The utility model discloses a wire harness clamping piece, a wire harness assembly and a wire harness assembly, and belongs to the technical field of wire harness assemblies. The wire harness clamping piece comprises a bearing plate, a first clamping part and second clamping parts are arranged on one side of the bearing plate, a first groove is formed between the first clamping part and the second clamping parts, the number of the second clamping parts is at least two, and a second groove is formed between every two adjacent second clamping parts; the two sides of the bearing plate are symmetrically arranged. According to the wire harness clamping piece, the first clamping part and the second clamping part are arranged, so that connection between wire harnesses is safe and firm, heating caused by poor clamping of the wire harnesses can be avoided, and electrical faults and electrical fire hazards are reduced; and the first groove and the second groove are arranged, so that the clamped wire harness can be conv