▎ 摘　　要

NOVELTY - Chemical composite plating solution comprises 20-40 g/l nickel salt, 20-50 g/l reductive agent, 45-120 g/l complexing agent, 0.5-25 mg/l surfactant, 0.02-0.1 g/l molybdate, 5-20 g/l cerium oxide powder and 10-250 mg/l graphene. The complexing agents comprises an organic complexing agent and an inorganic complexing agent. The surfactant comprises anionic surfactant and nonionic surfactant. USE - The chemical composite plating solution is useful for preparing a composite chemical plating layer, which is useful in a surface of a component to improve abrasion resistance, high temperature anti-oxidant wide temperature domain wear-resistant performance and corrosion resistance. ADVANTAGE - The chemical composite plating solution has good dispersibility, good stability, fast plating speed and wide application range, and provides chemical composite coating with excellent corrosion resistance, high temperature anti-oxidant wide temperature domain wear-resistant performance and abrasion resistance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: a preparation method of chemical composite plating solution; a preparation method of chemical composite plating layer; and a chemical composite plating layer.