Hello every body, is it possible to disable the "Edit" function

Yes. When you deploy the report within a page as a channel, you will have options to control the Edit functionality amongst others.

Thanks, but the problem happened when I'm using a graphic report on portal page with link to the other report. I want to hide the edit button.. is it possible?

You need to set the same condition for the graphical report as well (i.e. to hide the Edit button). The channel configuration should address the visibility option.

Yes on channel it's clear. But, I added on channel a report without Edit settings.
By this graphical report you can drill down for a details report and in this details report ther is the EDIT Button (the previous screenshot). How I can disable it?