Membrane　performance　in　separation　relies　largely　on　the　membrane　properties.　In　this　study,　metal　ions　of　Cu2+,　Co2+,　and　Fe3+　are　used　individually　as　a　bridge　to　develop　forward　osmosis　(FO)　membranes　via　a　clean　complexation　reaction.　A　metal　ion-bridged　hydration　layer　is　formed　and　endows　the　membrane　with　a　more　hydrophilic　and　smoother　surface,　higher　fouling　resistance,　and　renewability.　These　improvements　make　the　newly　developed　membranes　superior　to　the　pristine　one　with　better　FO　performances.　The　Fe3+-bridged　membrane　produces　water　fluxes　increased　up　to　133%　(FO　mode)　and　101%　(PRO　mode)　compared　with　the　pristine　membrane　against　DI　water　with　0.5-2.0　M　MgCl2　as　the　draw　solution.　The　Fe3+-bridged　membrane　can　efficiently　reclaim　pharmaceuticals　such　as　trimethoprim　and　sulfamethoxazole　from　their　dilute　solutions　with　good　water　permeability　and　a　high　pharmaceutical　retention.　This　membrane　also　exhibits　a　stronger　renewability　with　water　flux　restored　to　98%　of　its　original　value　after　20　h　experiments　in　trimethoprim-containing　water　treatment.　This　study　provides　a　facile　and　clean　approach　to　develop　highly　efficient　FO　membranes　for　wastewater　reclamation　and　pharmaceutical　enrichment.　©　2019　American　Chemical　Society.