<p>Metal–organic frameworks (MOFs), a class of novel materials with highly ordered porous structures, have demonstrated broad application prospects in gas adsorption and separation, catalytic reactions, energy storage, and environmental remediation. However, the synthesis of traditional MOFs often relies on high-temperature and high-pressure conditions and involves a large amount of toxic and hazardous solvents, which not only increase production costs but also pose potential threats to the environment. This review focuses on the green synthetic strategies for MOFs. It comprehensively analyzes the microstructures and key characteristics of MOFs and explores in detail how to prepare MOFs in a cleaner and more energy-efficient manner. It also assesses the advantages of these new materials in solving practical environmental problems. The review emphasizes the importance of green synthesis in reducing environmental impact, highlights the key role of MOFs in sustainable development, and puts forward constructive suggestions for future research, including the development of large-scale and low-cost production technologies, the establishment of quality standards and technical specifications, and the importance of interdisciplinary collaboration. This work aims to provide valuable reference information for researchers in related fields and to promote the development of MOF technology in a greener and more practical direction.</p>