First of all placed a template file on(need root power)

/usr/share/vim/addons/ftplugin/latex-suite/templates/

use command ls -al in terminal

#ls -al /usr/share/vim/addons/ftplugin/latex-suite/templates/

then you will get somme temple like:article.tex report.tex IEEEtran.tex report_two_column.tex

I creat a new file book.tex,that I wanna to added template.

Then I created the soft link of it in directory:

/var/lib/vim/addons/ftplugin/latex-suite/templates/

use command ln -s in terminal

#ln -s

/usr/share/vim/addons/ftplugin/latex-suite/templates/book.tex

/var/lib/vim/addons/ftplugin/latex-suite/templates/book.tex

If everything goes well, when create a new tex file on vim and type

:TTemplate book

The latex book will be auto creat.