I lost all my photo how can I get it back plz
Restore from you backup http://support.apple.com/kb/HT1766
Also you should be importing your pics to your computer http://support.apple.com/kb/HT4083
That is very vague.
Pics taken with the iphone? Did you fail to import them to your computer?
Pics synced from your comptuer to iphone?
What happened prior to the loss?
Hard to help when you provide no info about your issue.
Retrieving data ...