Our group reported the ZIF-L membrane with an appealing membrane-interlocked-support (MIS) composite architecture. The membranes show average H2 permeances of above 4000 GPU and H2/CO2 separation factor (SF) of above 200, falling into the industrial target zone. Furthermore, the ZIF-L membrane possessing the MIS composite architecture shows mechanical stability, scraped repeatedly by a piece of silicon rubber causing no selectivity loss.This work has been published in Science Bulletin.