Hi, I want to know if i lost my iphone can you help me with IMEI for tracking the loacation?

We are all users like you on this user to user only forum. Apple doesn't get involved in lost or stolen iPhones. Your phone can't be tracked by it's IMEI number. In order to find a lost iPhone, you needed to have enabled Find My before it went missing and the phone needs to be connected to a network and powered on.

See this link on what to do if your phone is lost or stolen --> If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support