In order to optimize the life cycle of baby carrier, it solves the children grow up fast and the contradiction between the product use requirements. It analyzes the carriage market situation and existing problems, combined with the appropriate principles of D4S(Design For Sustainability), explores the specific application strategies on sustainable design of baby carrier. Under the direction of sustainable theory, it can be used to design sustainable carriage of strategy, and practical strategies demonstrated by "AIZIXING" for the case, can effectively solve the problem of short period use of baby carrier, provide the reference for the baby carrier enterprise transformation upgrade.