Gas　hydrates　are　crystalline　solids,　where　gas　molecules　are　trapped　in　cavities　constructed　by　hydrogen-bonded　water　molecules　under　relatively　high-pressure　and　low-temperature　conditions.　Hydrates　play　a　crucial　role　in　the　global　energy　system,　serving　as　possible　blockages　in　traditional　oil　and　gas　transportation,　ideal　clean　energy　sources　formed　naturally,　and　a　potential　long-term　carbon　sequestration　media.　Besides,　it　is　with　great　potential　to　apply　hydrate-based　technology　in　environmental　fields,　such　as　gas　separation　and　purification,　seawater　desalination,　wastewater　purification,　etc.　Whether　in　natural　or　industrial　systems,　hydrates　share　interfaces　with　a　variety　of　substances,　including　gases,　different　liquids　(such　as　oil,　aqueous　solutions),　and　different　solids　(such　as　sediments,　pipe　walls),　among　others.　For　the　enhanced　progress　of　hydrate-based　technology,　it　is　of　great　significance　to　conduct　an　in-depth　study　into　the　unique　features　of　hydrate　formation　at　interfaces　and　the　corresponding　factors.　On　the　basis,　this　paper　reviews　the　significant　insights　generated　by　recent　researches　in　understanding　of　hydrate　nucleation　and　growth　mechanisms　at　interfaces.　Special　focus　is　laid　on　the　interactions　among　gas,　liquid　and　solid,　as　well　as　the　impacts　of　other　prominent　factors　(driving　force,　additives,　gas　composition　etc.)　on　hydrate　formation.　The　essential　physical　and　chemical　insights　presented　in　this　review　may　be　of　worth　in　better　design　of　the　research　methods　and　industrial　applications.