The bright yellow color has some properties such as high saturation,high pigmentbinder ratio andpoor hiding power,so three typical problems are found during the import process.For instant,the metamericphenomenon is obvious between D65/10 light source and A/10 light source.Meanwhile the recoating film hasthe risk of peeling off caused by low adhesive force,and it is difficult to balance thin paint and sagging due topoor application property.For these three problems,the causes were analyzed and targeted measures wereproposed.Finally,the above-mentioned typical problems were eliminated through the implementation ofcomprehensive strategies including adjusting paint materials and optimizing construction parameters,and thequality returned stability simultaneously.