Conjugated　polymers　have　gathered　particular　interests　in　photocatalysis　because　of　their　excellent　properties　such　as　optimization　flexibility,　cost-effective,　and　robust　stability.　The　pyrene-based　polymer　(PyP),　as　one　of　the　conjugated　polymers,　holds　a　great　potential　for　water　splitting　because　of　their　suitable　band　structure,　visible　light　absorption,　and　high　surface　area.　However,　because　of　the　fast　charge　carrier　recombination　confined　by　Frenkel　excitons　with　high　exciton　binding　energy,　PyP　in　its　pristine　form　remains　barely　active　for　photoctalytic　hydrogen　evolution.　The　concise　construction　of　heterojunction　is　a　feasible　way　to　accelerate　the　charge　separation,　increase　the　lifetime　of　the　photogenerated　e(-)/h(+)　pair　and　decrease　the　activation　barriers　of　hydrogen　evolution　reaction.　In　this　work,　a　series　of　transition　metal　sulfides　as　cocatalysts　have　been　deposited　on　PyP　to　construct　heterojunctions　for　photocatalytic　H-2　evolution　reaction　(HER).　The　loading　techniques　(immersion,　in-situ　and　photodeposition)　and　the　loading　contents　of　cocatalysts　have　been　investigated.　The　optimized　MoS2/PyP　sample　exhibited　a　10-fold　increase　in　comparison　with　pure　PyP　without　modification.　The　extended　pi-conjugation,　high　surface　area,　and　widely　exposed　2D　interface　highlight　the　importance　of　PyP　as　effective　supports　for　stabilizing　the　homogeneously　dispersed　MoS2,　thereby　resulting　in　an　efficient　photocatalytic　activity.　This　study　provides　a　new　idea　to　construct　low-cost,　sustainable　and　efficient　hybrid　system　for　photocatalytic　hydrogen　production.