Abstract: The recycling of decommissioned wind power blades is the key to the green and sustainable development of wind power throughout its life cycle.This paper summarizes the relevant research results in the field of decommissioned wind power blade recycling.The maturity, advantages and disadvantages, ecological and economic benefits of each technology path are analyzed systematically and comprehensively.It provides support for the overall promotion of the recycling and utilization of decommissioned wind power blades, the layout of the industry according to local conditions, and helps the construction of the wind power industry waste recycling system.