The　excessive　emission　of　greenhouse　gas　CO2　has　caused　global　climate　change.　Catalytic　conversion　of　CO2via　hydrogenation　is　a　promising　route　for　the　achievement　of　carbon　circular　economy　and　carbon　neutralization　target.　In　this　study,　the　bio-SAPO-34　with　multiple　meso-　and　macro-　structures　was　synthesized　by　using　rice　husk　as　the　bio-template.　The　hierarchical　structure　of　bio-SAPO-34　facilitated　the　diffusion　of　reaction　intermediates　and　improved　the　catalytic　activity.　The　effect　of　synthesis　parameters　such　as　precursor　concentration,　structure-directing　agent　and　the　amount　of　rice　husks　on　the　replication　the　architecture　of　rice　husks　biotemplate　have　been　systematically　studied.　Moreover,　the　ZnZrOx　was　composited　with　bio-SAPO-34　to　form　ZnZrOx&bio-SAPO-34　bifunctional　catalyst　for　CO2　hydrogenation　to　light　olefins.　Under　reaction　conditions　of　380　and　3MPa,　the　selectivity　of　low　olefins　was　66.4%　(in　hydrocarbon　products)　with　a　CO2　conversion　of　11.8%.　Furthermore,　the　obtained　ZnZrOx&bio-SAPO-34　bifunctional　catalysts　showed　excellent　stability　in　a　60h　long-term　test.　©　2022,　Chemical　Industry　Press　Co.,　Ltd.　All　right　reserved.