The model, 35, was filmed storming out of the London event after being offended by a joke host James Nesbitt, 44, reportedly made about her.
'He's so f***ing rude,' said Kate. 'Do you know what? I'm never coming back to these f***ing awards.'
Boyfriend Jamie Hince and pal Lily Allen, 24, were seen trying to calm her down.
Kate also clashed with Dizzee Rascal, 24, as she returned to try to find her lost lipstick.
The rapper, who scooped the Best Solo Artist prize, wasn't impressed that she walked in front of the camera during his TV interview.
'You keep stealing my light, go away,' said Dizzee. 'Kate Moss has lost her lipstick son, it's a f***ing disaster.'
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