the package I use is {graphicx}.
and the code is following:
\includegraphics[width=6.5cm]{/Users/Joy/Desktop/my graph/SSE Ari&Geo.png}
How can I delete the address of picture under the graph?
Thank you

It's easier if you place the image in the same folder as your .tex file and then just input the filename without the extension (it's not necessary). Like
\includegraphics[width=6.5cm]{SSE Ari&Geo}
The & causing errors is inconsistent (it seems to throw the error when there is a space in the filename though). In any case, I'd suggest removing it to avoid any conflicts. Renaming the file to a simple "AriGeo" will do.
\documentclassto\end{document}) that showed the problem (this is called an MWE here). I've edited your post to use code highlighting: backticks(`) can be used for short snippets of code and longer sections can be indented with 4 spaces. – Chris H Jul 09 '15 at 12:39grffilepackage. You might also want to place that figure in the same folder as your.texfile, or in a subfolder instead of using a global path. – daleif Jul 09 '15 at 12:39&signs in the path (as you only have a partial path), but in that case I would expect the figure to fail to import. Otherwise I suggest a package option is to blame, hence why I recommend a full MWE. – Chris H Jul 09 '15 at 12:41