**3. Conclusion and outlook**

Hydrogenated dechlorination degradation is an important method for the organochlorine degradation. Catalyst activity and its lifetime are two key points for the HCP, especially for the noble metal catalyst. In order to solve the recycling or reunion problems of noble metal catalyst, designing a suitable catalyst support becomes more important, core-shell type, organic porous materials, especially organic crystal type of porous materials, which is developing rapidly in recent years, such as MOF (metal organic frameworks) and COFs (covalent organic frameworks) materials because of the rules of uniform structure and large specific surface area that can bring some- advantages to metal catalyst loading, design and synthesis coordination bond or other stronger bond to combine the metal and carrier is one of the important measure to prevent the catalyst loss.
