I pray 5times salah everyday.I heard that we can't pray salah by giving bodyspray so I'm little bit confused,please answer me...

Assalamu Alaikum

It depends on the amount of alcohol in the perfume. If it is lss than 5% and unnoticeable, most scholars agree it should not matter.

But if it is noticeable, or very high in alcohol volume, it is best not to do so.

This site may help. (it is where I found the answer for you :) )
http://islamqa.com/en/ref/1365

Ma'assalama