Huawei Mate 10 rooting method is not as 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 unlocking the bootloader you will also lose the warranty of your device. So let’s move to the tutorial.

Rooting Tutorial:

• Make sure Hisuite is installed on your PC
• Backup all your important data
• Unlock the bootloader of your phone (How to unlock?)
• Download root files from THIS LINK  (password==ministryofsolutions.com)
• Copy it to C drive, Rename the extracted folder to “Root”
• Extract the downloaded file and rename the extracted folder to “Root”.
• Then copy the Magisk apk to your phone storage and install it
• Then connect the 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
• The Phone will reboot and install the root
• Reboot the phone and install 2 Magisk modules (Huawei WiFi fix and Huawei Prop fix)
• Reboot and  verify root access with any root checker app
• Do not factory reset/update or install any other version of Magisk

Source: XDA

Video Tutorial