Decontamination and dismantlement are key steps in decommissioning nuclear facilities. Advanced technologies and equipment are required to achieve the goals of safety, efficiency and minimization of decommissioning waste. This paper introduces the application research of a series of laser technologies including decontamination, laser stripping and laser cutting in the decommissioning of nuclear facilities, analyzes the characteristics and application scope of each technology, and discusses the future of laser technology in decommissioning of nuclear facilities. The development trends and issues worthy of in-depth discussion are prospected.