All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
We came to know that the reality of dreadlocks hairstyle is to twist the hair into long matted or ropelike locks. In principle, making the hair into braids is permissible and this matter is confirmed from the Prophet but this should not exceed the normal way, in a manner that the person who does so appears ugly, especially if this hairstyle is a custom of some non-Muslim nations.
Indeed, we saw the picture of those non-Muslims who wear dread locks and they look ugly.
Allaah Knows best.