In　today＇s　society,　an　increasing　number　of　users　and　enterprises　encrypt　substantial　amounts　of　data,　including　spatial　text　data,　and　outsource　it　to　cloud　servers.　However,　efficiently　and　securely　querying　encrypted　spatial　text　data　remains　a　pressing　issue.　In　this　article,　we　propose　a　blockchain-based　searchable　encryption　scheme　for　spatial　text　data.　Users　encrypt　documents　using　methods　such　as　order-preserving　encryption　and　upload　them　to　the　blockchain　for　on-chain　storage.　The　cloud　server　can　only　retrieve　information　stored　within　the　blocks,　facilitating　keyword　and　coordinate　comparisons.　To　enhance　query　speed,　we　introduce　a　sliding　window　that　allows　the　server　to　quickly　skip　through　non-matching　blocks.　Finally,　through　experiments　and　comparisons,　this　paper　demonstrates　that　the　proposed　scheme　excels　in　query　efficiency　and　computational　overhead,　proving　its　superiority　and　feasibility　compared　to　other　solutions.　©　2023　ACM.