A　set　of　Sm-Fe-B　films　with　different　compressive　stresses　were　prepared　on　substrates　with　different　prestrains　by　ion　beam　spurting　deposition　(IBSD).　The　influence　of　compressive　stress　on　the　magnetic　anisotropy　and　the　magnetostriction　in　sputter-deposited　amorphous　Sm-Fe-B　films　were　investigated.　Films　affected　by　compressive　stress　all　show　in-plane　anisotropy　and　easy　axis　along　the　direction　of　stress　is　induced　in　the　film　with　compressive　stress　increasing.　Magnetostriction　of　Sm-Fe-B　films　affected　by　compressive　stress　is　improved　in　low　magnetic　field　while　saturation　of　magnetostriction　decreases　slightly.　At　the　same　time,　the　magnetostriction　rises　rapidly　in　low　field　measured　in　a　field　parallel　to　the　film　plane　at　room　temperature　with　the　growth　of　compressive　stress.　It　is　also　found　that　the　magnetic　domain　component　which　is　perpendicular　to　the　film　plane　increases　on　a　small　scale,　though　the　magnetic　domain　or　the　magnetic　domain　component　parallel　to　film　plane　still　exist　dominantly.　Copyright　©　2016,　Northwest　Institute　for　Nonferrous　Metal　Research.　Published　by　Elsevier　BV.　All　rights　reserved.