Huawei Mate 10 Pro rooting method is not simple as other Huawei devices. This method has been developed by famous mankindtw. This method is only suitable for EMUI8 devices. Bootloader unlock will be mandatory like all other huawei models. By unlcoking bootloader you will also lose warranty of your device. So lets move to tutorial.

Rooting Tutorial:

• Make sure hisuite is installed on your pc
• Backup all your important data
• Unlock bootloader of your phone (How to unlock?)
• Download root files from THIS LINK  (password: ministryofsolutions.com)
• Copy it to C drive
• Extract downloaded file and copy Magisk apk to your phone storage and install it
• Then connect phone in fastboot mode
• Open magisk folder and double click magisk.bat
• Press enter to start flashing Recovery
• Once flashing complete disconnect phone from pc and hold volume up and power to enter EMUI recovery
• Then again connect with pc and press enter
• Phone will reboot and install the root
• Reboot phone and install 2 magisk modules (Huawei WiFi fix and Huawei Prop fix)
• Rebootand  verify root access with any root checker app
• Do not factory reset/update or install any other version of magisk

Source: XDA

Video Tutorial