Zaid,
1. Is deepin good for create my own hacking os ?
2. What tools want install it ?
3. How i login deepin as a root account ? like kali root@kali
4. What is the root password in root user ?
1. It’s a linux based OS so it can be usefull.
2. Depends what you want to do but maybe some apps for information gathering, web traffic analysis, reverse engineering, sniffing data, etc.
3. You’ll have to read the documentation for this and for number 4