In　order　to　solve　the　problem　of　insufficient　key　information　and　serious　damage　of　detail　texture　in　the　feature　extraction　process　of　single　image　super-resolution　reconstruction　algorithm　when　processing　low-resolution　image,　we　propose　a　high-performance　feature　information　dependence　algorithm　(HPDA)　based　on　a　Prior　Preserving　Block　(PPB)　and　Residual　Feature　Holding　Block　(RFHB)　to　obtain　feature　information　dependence　between　image　blocks.　To　better　focus　key　information　in　the　original　image,　We　introduced　an　improved　Enhanced　Spatial　Attention　module　(ESA)　to　ensure　the　overall　integrity　and　accuracy　of　the　image　reconstruction.　The　reconstruction　quality　detail　and　reconstruction　speed　of　different　scales　have　achieved　a　good　balance.　©　2023,　John　Wiley　and　Sons　Inc.　All　rights　reserved.