邀请函广泛运用于一些邀请场合，邀请函分为两种:一种是个人信函,例如邀请某人共进晚餐、参加宴会、观看电影、出席典礼等。另一种邀请函是事务信函,一般是邀请参加会议、学术活动等等。
RE:LETTERINSUPPORTOFANAPPLICATIONFORAVISTOR’SVISA
NAME:TYPENAMEOFFAMILYMEMBER
PASSPORTNO:TYPETHEIRPASSPORTNUMBERHERE
IAMWRITINGTOINVITEMYMONTHERNAMEDABOVETOCOMEVISITMEINTHEUK/CANADADURINGMYCOURSECALLED(WRITENAMEOFCOURSE)AT(NAMEOFSCHOOL)
THEYWISHTOVISITDURINGTHEMONTHOF(DATE)ANDTHEYWILLSTAYWITHMEATMYADDRESSABOVE.IHAVEENCLOSEDPROOFTHATIAMSTUDYINGINTHEUKANDTHATIHAVEPERMISSIONTOBEINTHEUKASASTUDENT.
YOURSSINCERELY
SIGNHERE
PRINTYOURNAMEHERE