IMEI number is used to identify mobile devices, so is means that every phone has its own unique number. You can use it to check exact information about your phone, or to blacklist it when it gets stolen. You should always check IMEI number if you are going to buy your phone second hand.
Here you can find a few methods of finding IMEI number on Huawei smartphones.
Using the Dial Pad. Easiest way of finding IMEI number is to open dialing app and type in *#06#. Instantly after that IMEI numbers should pop up on your screen.
In the phone menu Go to the phone settings Then select System -> About phone Now IMEI number of your device should be displayed on your screen
On the box Box of your phone will always have IMEI number on itself.
Under battery cover If battery cover of your phone is removable, you can find IMEI number on the nameplate of your phone.
Below you will find video showing how to find IMEI numbers on Huawei P20 Pro