Abstract: Wound healing is a complex physiological process， which can be divided into four main stages： Hemostasis， inflammation， proliferation and migration， and tissue remodeling. At the same time， granulation formation， inflammatory cell infiltration， necrotic tissue cleaning， scar remodeling and other reactions are involved. In some pathological cases， the natural healing process of the wound may be stalled， resulting in repeated attacks and even death from shock. In recent years， the search for high safety and high efficiency medical materials has attracted much attention from researchers. Among them， cerium oxide nanoparticles are a unique material which can promote wound healing and play an important role in all stages of wound healing. Nano-cerium oxide particles not only have antioxidant， antibacterial and anti-inflammatory functions， but also can be used as drug carriers in wound repair to ensure the benign absorption of the body， and can be used as tissue scaffolds to promote the development and maturity of new structures. Therefore， exploring the role of cerium oxide nanoparticles in wound healing may be a new strategy for wound repair. In this paper， the effects of cerium oxide nanoparticles on wound repair were reviewed to provide references for their further application and development in the future.

Key words: Wound healing, 　Cerium oxide nanoparticles, 　Interactions