Photocatalytic　hydrogen　production　based　on　noble　metal-free　systems　is　a　promising　technology　for　the　conversion　of　solar　energy　into　green　hydrogen,　it　is　pivotal　and　challenging　to　tailor-make　photocatalysts　for　achieving　high　photocatalytic　efficiency.　Herein,　we　reported　a　hollow　double-shell　dyad　through　uniformly　coating　covalent　organic　frameworks　(COFs)　on　the　surface　of　hollow　Co9S8.　The　double　shell　architecture　enhances　the　scattering　and　refraction　efficiency　of　incident　light,　shortens　the　transmission　distance　of　the　photogenerated　charge　carriers,　and　exposes　more　active　sites　for　photocatalytic　conversion.　The　hydrogen　evolution　rate　is　as　high　as　23.15　mmol　g-1　h-1,　which　is　significantly　enhanced　when　compared　with　that　of　their　physical　mixture　(0.30　mmol　g-1　h-1)　and　Pt-based　counterpart　(11.84　mmol　g-1　h-1).　This　work　provides　a　rational　approach　to　the　construction　of　noble-metal-free　photocatalytic　systems　based　on　COFs　to　enhance　hydrogen　evolution　performance.　Hollow　double-shell　dyads　have　been　constructed　using　covalent　organic　frameworks　and　transition　metal　sulfides,　the　double-shell　architecture　broadens　light　absorption,　improves　hydrogen　evolution　kinetics　and　reduces　the　photogenerated　electron　transfer　resistance,　resulting　in　high　performance　in　photocatalytic　hydrogen　evolution　reaction.　image