Nanofiltration　(NF)　is　widely　used　in　water　treatment;　however,　the　fabrication　of　NF　membranes　with　high　permeability　and　selectivity　still　remain　a　challenge.　Here,　we　propose　a　facile　and　feasible　approach　to　design　and　prepare　nanoporous　polymeric　membranes　(NPMs)　by　using　soluble　molecular　coordination　complexes　as　pore-forming　agents　for　the　removal　of　dyes　from　water.　Enhanced　porosity　and　tuned　pore　sizes　of　the　membranes　were　achieved　by　using　several　selected　coordination　complexes　with　different　compositions　and　structures.　The　resulting　membranes　display　high　permeance　without　compromising　rejection　compared　with　corresponding　pristine　membranes.　Particularly,　one　of　membranes,　with　tBu-MOP　acting　as　the　pore-forming　agent,　shows　an　optimal　separation　performance　of　the　water　permeance　over　209　L/(m(2).h.MPa)　and　a　rejection　about　98%　toward　both　methyl　blue　(MB)　and　eriochrome　black　T　(EBT).　This　permeance　is　4.5-fold　higher　than　that　in　the　pristine　membrane　fabricated　without　using　any　pore-forming　agent.　This　method　is　expected　to　extend　to　the　fabrication　of　other　polymeric　membranes　with　required　pore　properties　by　selecting　suitable　coordination　complexes　as　pore-forming　agents　for　different　separation　applications.