The attacking midfielder has secured his dream move to the Soweto giants following lengthy talks between Amakhosi and Bakgaga Ba Ga Mphahlele.
Bloemfontein Celtic were also keen to sign Ntshangase, but Amakhosi have since won the race for the attacker's signature.
Ntshangase is Chiefs' third signing in the current Transfer Window with the Naturena side having already signed Leonardo Castro and Kabelo Mahlasela.
The 24-year-old, who is a former Black Leopards playmaker, signed a two-and-a-half year deal with Chiefs.
Amakhosi made the announcement on their official Twitter account:
Ntshangase becomes a Khosi!— Kaizer Chiefs (@KaizerChiefs) January 4, 2018
Kaizer Chiefs would like to announce the arrival of another attacking midfielder, Siphelele Ntshangase from Baroka FC on a two and a half year deal with the option to extend his stay with Amakhosi for one year.
Welcome to the Family!#KCOneTeam pic.twitter.com/D5HNyV24ym