The　photocurrent　produced　by　the　synergy　of　pyroelectric　and　photovoltaic　effects　in　ferroelectric　materials　exhibits　great　potential　for　photodetection.　Photocurrent　generated　by　various　ferroelectric　materials　exhibits　a　different　behavior　with　the　ambient　circumstance　especially　the　temperature,　making　it　a　long-term　topic.　Here,　we　report　a　remarkable　promotion　in　the　photocurrent　of　a　photoelectric　device　based　on　ferroelectric　(K0.5Na0.5)(Nb0.94Sb0.06)O3-Bi(Ni0.33Nb0.67)O3　(KNNS-BNN)　materials　via　temperature　modulation.　When　compared　with　the　photocurrents　obtained　at　room　temperature,　by　lowering　the　atmospheric　temperature　to　14.8　°C,　the　peak　photocurrent　is　increased　by　219%,　and　by　raising　the　temperature　to　46　°C,　the　platform　photocurrent　is　improved　by　69.9%.　The　enhanced　photocurrents　are　mainly　ascribed　to　temperature-controlled　conductivity　and　energy　band　structure　of　the　KNNS-BNN　materials.　Working　as　a　self-powered　photodetector,　the　responsivity　of　the　device　reaches　4.01　×　10-6　A　W-1.　This　work　provides　new　possibilities　for　high-performance　ferroelectric　photodetectors.　©　2023　American　Chemical　Society.