Here　we　present　the　design　and　synthesis　of　a　new　robust　microporous　organic　polymer　(TPBP)　decorated　with　phenazine　groups　which　endowed　reversibly　redox-active　properties.　The　obtained　TPBP　possesses　relatively　high　surface　area　(359　m(2)/g)　and　good　thermal　stability.　TPBP　exhibits　excellent　catalytic　capability　for　the　oxidative　homocoupling　of　amines　with　high　activity　and　selectivity　toward　target　products.　Besides,　this　metal-free　catalyst　demonstrated　excellent　recyclability　after　6　cycles　under　the　investigated　conditions.　By　means　of　EPR　and　UV-vis　spectroscopy,　a　plausible　mechanism　of　the　amine　oxidative　coupling　reaction　was　deduced　via　a　single　electron　transfer　from　TPBP　radical　cations　to　amine　substrates.　(C)　2020　Elsevier　Inc.　All　rights　reserved.