β-solidifying γ-TiAl alloys combine low-density and excellent mechanical properties at intermediate and high temperatures, making them promising candidates for low-pressure turbine blades in aeroengines. Solidification through the β phase improves hot workability; however, the limited room-temperature ductility and poor formability of conventional casting and forging routes restrict the engineering application of complex components. Additive manufacturing offers a new technological pathway for near-net-shaped fabrication and microstructural control of β-solidifying γ-TiAl alloys. In this review, a comprehensive literature survey and comparative analysis are employed to systematically summarize recent progress in the fabrication of β-solidifying γ-TiAl alloys by laser powder bed fusion (L-PBF), laser-directed energy deposition (L-DED), and electron beam powder bed fusion (EB-PBF). The results indicate that laser-based additive manufacturing provides high geometric accuracy and significant microstructural refinement but suffers from strong crack susceptibility and high residual stresses. Under appropriate process parameters and high preheating conditions, EB-PBF can effectively reduce the cracking tendency, achieving a combination of room-temperature tensile strength exceeding 800 MPa and elongation reaching 2%~3%. However, issues such as aluminium element volatilization and microstructural coarsening remain. This paper focuses on the effects of processing parameters, thermal management, and postprocessing on the phase constitution, lamellar microstructures, and mechanical properties and further outlines future perspectives in alloy design, process optimization, and multiscale characterization.