The stealthy effectiveness of optic/laser stealth coating is affected by many factors, so it is hard to evaluate its synthetic stealthy effectiveness. To quantize the stealth effectiveness of optic/laser stealth coating exactly, analytic herarchy process (AHP) method acquiring relative weight of the factors which affect the stealthy effectiveness of optic/laser stealth coatings is used, and the stealthy effectiveness synthetic evaluation model of the optic/laser stealth coated by fuzzy synthetic evaluation method is established to quantize the stealth effectiveness of the coatings. The model is applied to some optic/laser stealth coatings samples, the result conforms that the model can quantize the stealth effectiveness of optic/laser stealth coatings accurately, and the model also can provide scientific decision-making for the selective preferencs of coatings.