The invention discloses a wire harness fixing clamp. The wire harness fixing clamp comprises a body; the body comprises a wear-resisting layer, a first
corrosion-resisting layer, a high-strength layerand a second
corrosion-resisting layer; the wear-resisting layer is located on the outer surface of the first
corrosion-resisting layer, the first corrosion-resisting layer is located on the outer surface of the high-strength layer, and the high-strength layer is located on the outer surface of the second corrosion-resisting layer; the outer surface of the body is coated with a
coating layer, thecoating layer comprises an anti-
rust coating and an anti-corrosion
coating, through openings are formed in the left end and the right end of the body, and inner cavities of the through openings are movably connected with screws; and the wear-resisting layer is a high-
manganese alloy layer, the first anti-corrosion layer is a
nickel-
chromium alloy layer, and the high-strength layer is a
carbon steel layer. According to the wire harness fixing clamp, through mutual cooperation of the wear-resisting layer, the first corrosion-resisting layer, the high-strength layer, the second corrosion-resisting layer, the anti-
rust coating and the anti-corrosion coating, the problem that an existing
metal fixing clamp is prone to corrosion after being used for a long time, and consequently the service life is short is solved.