The　static　characteristics　of　three　mesoporous　silica　particle　(MP)　pressure-sensitive　paints　(PSPs),　containing　polystyrene　(PS),　room　temperature　vulcanized　silicone　rubber　(RTV),　and　poly[1-(trimethylsilyl)-1-propyne]　(PTMSP)　as　polymers,　were　calibrated　and　compared　to　those　of　polymer/ceramic　(PC)-PSP　under　near-vacuum　conditions.　According　to　the　results,　PTMSP/MP-PSP　exhibited　the　highest　pressure　sensitivity　and　lowest　temperature　dependency,　which　make　it　suitable　for　determining　tiny　pressure　variations.　RTV/MP-PSP,　which　presented　a　relatively　high　pressure　sensitivity　and　good　photostability　has　also　a　good　potential　for　application　under　near-vacuum　conditions.　By　comparing　PTMSP-PSPs　with　and　without　mesoporous　silica　particles,　it　was　found　that　the　addition　of　particles　improved　the　pressure　sensitivity　and　photostability,　but　did　not　increase　the　temperature　dependency　significantly.　To　correct　the　degradation　of　PSP　pressure　sensitivity　under　near-vacuum　conditions,　a　method　for　eliminating　the　test　errors　caused　by　irradiation　under　near-vacuum　conditions　was　proposed.　©　2021　Elsevier　B.V.