Sesquioxide Lu₂O₃ has excellent thermodynamic properties, low phonon energy and strong crystal field characteristics, making it one of the excellent candidates for wideband high-power laser matrix materials in the near-infrared and mid-infrared spectra (1~3 μm), and attracting widespread attention in recent years. Since Lu₂O₃ has a melting point of up to 2 450 ℃, growing single crystal is extremely difficult, limiting its application development. However, Lu₂O₃ belongs to the cubic crystal system and is optically isotropic, making Lu₂O₃-based transparent ceramics a viable option. Compared to single crystal, transparent ceramics can be sintered at lower temperatures (60%~80% of the melting point of crystals) to prepare large-size samples, while the sintering cycle is greatly reduced and more conducive to mass production, so the preparation of Lu₂O₃-based transparent ceramics as a new type of laser material has the potential for a wider range of applications in scientific research, industrial production and daily life. In this paper, the preparation technology and properties of Lu₂O₃-based laser transparent ceramics doped with rare earth ions (Nd³⁺, Er³⁺, Yb³⁺, Tm³⁺, Ho³⁺) are reviewed. In the future, the development of half-oxide Lu₂O₃-based laser ceramics will be focused on large size, high power output, low scattering characteristics, high thermal stability, and composite structure design to promote the development of high-performance solid-state lasers.