So i want to clear my cache on xbox 360 but i want to know a process where it will not corrupt my saves. Someoen gave me a method to do this.
He said

1 Delete the installled skyrim from your hardrive and make sure the disc is out.

2 Next, clear cache then put in the skyrim disc.

3 Now play the skyrim disc and install the updates (because the updates would have been deleted) then go back to the dashboard and install skyrim.

Is this a good method to avoid corrupt saves and issues towards gameplay?
If there is a better way could you please post.

I've never had a problem with corrupted saves from clearing the cache. When I have cleared the cache it fixed my problem sometimes. The main game I've had problems with is Halo.

could you tell me what you do?

That's clearing the system cache, and requires re-download of updates. You can also clear the game cache, hold right bumper, left bumper and x on initial start up until you hear the HDD going yampy.