A　facile　approach　for　the　heterogenization　of　transition　metal　catalysts　using　non-covalent　interactions　in　hollow　click-based　porous　organic　polymers　(H-CPPs)　is　presented.　A　catalytically　active　cationic　species,　[Ru(bpy)3]2+　(bpy　=　2,2’-bipyridyl),　was　immobilized　in　H-CPPs　via　electrostatic　interactions.　The　intrinsic　properties　of　[Ru(bpy)3]2+　were　well　retained.　The　resulting　Rucontaining　hollow　polymers　exhibited　excellent　catalytic　activity,　enhanced　stability,　and　good　recyclability　when　used　for　the　oxidative　hydroxylation　of　4-methoxyphenylboronic　acid　to　4-methoxyphenol　under　visible-light　irradiation.　The　attractive　catalytic　performance　mainly　resulted　from　efficient　mass　transfer　and　the　maintenance　of　the　chemical　properties　of　the　cationic　Ru　complex　in　the　H-CPPs.　[Figure　not　available:　see　fulltext.]　©　2016,　Tsinghua　University　Press　and　Springer-Verlag　Berlin　Heidelberg.