This review summarizes the fabrication strategies and environmental applications of 3D-printed metal-organic frameworks (MOFs) monoliths. MOFs are promising porous materials with high surface area, tunable structures, and diverse functionalities. However, most MOFs are in powder form, which limits their application due to issues like low packing density, clogging, and mechanical instability. To address these challenges, techniques have been developed to convert MOF powders into macroscopic materials such as beads, membranes, and monoliths. 3D printing technology has gained attention for its ability to produce high-resolution, complex structures from digital models, enabling the fabrication of 3D-printed MOF monoliths with customizable shapes and geometries. This review discusses various 3D printing strategies, including direct ink writing (DIW), seed-assisted in-situ growth, coordination replication from solid precursors, matrix incorporation, and digital light processing (DLP), for fabricating 3D-printed MOF monoliths. These strategies enable the creation of MOF monoliths with interconnected channels, which improve heat and mass transfer, and allow for applications in water treatment and gas adsorption. The review also highlights the advantages of 3D printing in producing MOF monoliths with high performance, structural stability, and tailored properties. Challenges and future directions for 3D-printed MOF monoliths are also discussed, emphasizing the need for further research to enhance their applicability in industrial and environmental contexts.This review summarizes the fabrication strategies and environmental applications of 3D-printed metal-organic frameworks (MOFs) monoliths. MOFs are promising porous materials with high surface area, tunable structures, and diverse functionalities. However, most MOFs are in powder form, which limits their application due to issues like low packing density, clogging, and mechanical instability. To address these challenges, techniques have been developed to convert MOF powders into macroscopic materials such as beads, membranes, and monoliths. 3D printing technology has gained attention for its ability to produce high-resolution, complex structures from digital models, enabling the fabrication of 3D-printed MOF monoliths with customizable shapes and geometries. This review discusses various 3D printing strategies, including direct ink writing (DIW), seed-assisted in-situ growth, coordination replication from solid precursors, matrix incorporation, and digital light processing (DLP), for fabricating 3D-printed MOF monoliths. These strategies enable the creation of MOF monoliths with interconnected channels, which improve heat and mass transfer, and allow for applications in water treatment and gas adsorption. The review also highlights the advantages of 3D printing in producing MOF monoliths with high performance, structural stability, and tailored properties. Challenges and future directions for 3D-printed MOF monoliths are also discussed, emphasizing the need for further research to enhance their applicability in industrial and environmental contexts.