The actress accused the reality star of ‘appropriating black culture’ after she showed off her braided locks to fans.
Amanda added that Kylie didn’t use her fame and influence to ‘help black Americans’.
"When u appropriate black features and culture but fail to use ur position of power to help black Americans by directing attention towards ur wigs instead of police brutality or racism #whitegirlsdoitbetter," Amandla wrote.
Kylie was quick respond, writing: "Mad if I don't, Mad if I do…. Go hang w Jaden or something."
Amandla, who plays Rue in The Hunger Games, went to a prom with Will Smith’s son Jaden back in May.
Kylie, who only last week shared a snap of her newly dyed blue tresses, has already gone back to her natural brunette.
Earlier this year, Amandla gave an impassioned and succinct lesson to the world on cultural appropriation in a video entitled 'Don't Cash Crop My Cornrow'.
The actress outlines how the proliferation of white artists exhibiting the styles and fashions of the hip-hop world has deep ramifications for those with whom the practices originated.
Story continues after the video.
She said: "So you can see why hair is such a big part of hip-hop and rap culture. These are styles of music which African American communities created in order to affirm our identities and our voices.
“[In the 2010s,] pop stars and icons adopted black culture as a way of being edgy and gaining attention.
“In 2013, Miley Cyrus twerks and uses black women as props, and then in 2014, in one of her videos called ‘This Is How We Do,’ Katy Perry uses Ebonics and hand gestures and eats watermelons while wearing cornrows before cutting inexplicably to a picture of Aretha Franklin.
"So as you can see, cultural appropriation was rampant."
Poignantly the 16-year-old ends with a question: "What would America be like if it loved black people as much as it loves black culture?"