The invention relates to a breeding method for bay purple hybrid golden yellow adductor muscle scallops. Excellent golden yellow adductor muscle scallops are selected from bay purple hybrid scallops, and stimulated after maturation promotion to obtain eggs and sperms thereof which are respectively utilized for selfing to establish multiple families. Excellent hybrid families are selected according to phenotypes of all the selfing families, then excellent individuals are selected from the excellent hybrid families, and after maturation promotion, self-fertilization are respectively carried out to establish multiple selfing families; through the way, selfing is continuously carried out for more than five generations by using the same method to obtain a new variety of golden yellow adductor muscle scallops, which is stable in inheritance and rich in carotenoids. The breeding method provided by the invention can also be implemented by adopting a group breeding method. The breeding method provided by the invention is simple and easy to purify, saves time and effort, and is easier to breed the new variety of the golden yellow adductor muscle scallops which is stable in inheritance and rich in carotenoids. The variety is rich in carotenoids, so that the nutritional value of scallops is obviously enhanced, and the scallops have a great economic value.