how can i get IMEI code from iphone simulator?
You can't. It's not something you can do with the iPhone SDK.
You can get the iPhone/iPod's Unique Device Identifier (UDID), but not the IMEI, Serial or phone number.
IMEI is an HW code of each phone. You can get phones' IMEI typing: *#06*. In iPhone simulator there is no IMEI.
I'm not sure that it's possible - besides which, Apple will moan if you publish software which does that on the AppStore...
As others stated - you cannot get IMEI through public API. If you want to obtain some device identifier to use in your application you must use uniqueIdentifier
property defined in UIDevice
class - it is there for exactly that purpose.
NSString* uniqueID = [UIDevice currentDevice].uniqueIdentifier;
FYI, you can obtain IMEI using private frameworks - see this question, but your app will be rejected from app store then.