Plating solution for electroplating nickel on aluminum-based carbon nanotube

The invention discloses plating solution for electroplating nickel on an aluminum-based carbon nanotube. Each liter of plating solution comprises 100-390g of nickel salt, 30-40g of boric acid, 0.1-0.3g of surface-active agents, 0.1-0.4g of grain refiners and 0-50g of complexing agents. The wetting property between the surface of the aluminum-based carbon nanotube and the plating solution is effectively improved by adding the surface-active agents in the plating solution, nano-nickel particles more uniformly wrap the surface of the aluminum-based carbon nanotube by the added grain refiners and are smaller, the particle size of the nano-nickel particles is 10-16nm, obtained materials can serve as an enhancement phase for composite materials such as an aluminum base, a magnesium base, a copper base, a titanium base, an alloy base and an intermetallic compound base, and the mechanical property and the corrosion resistance of the composite materials are finally improved.