Plating solution for plating zinc on carbon nano tube

The invention discloses a plating solution for plating zinc on a carbon nano tube. The plating solution specifically consists of the components: 50-200g/L of zinc chloride, 0.1-0.5g/L of surfactant, 30-100g/L of conducting salt and the balance water. The plating solution is simple in formula; with the adoption of the plating solution having the specific components and a specific matching ratio, the surface of the carbon nano tube can be coated with zinc grains very uniformly, and the grain sizes of the nano zinc grains coating the surface of the carbon nano tube are 28-35 nanometers; an obtained material can serve as reinforcing phases of composites comprising a magnesium matrix composite, an aluminium base composite, a copper matrix composite, a cadmium matrix composite, a lead matrix composite and a titanium matrix composite; and the mechanical properties of the composites are improved finally.