The Guardian reports that she sought the order to ban photographers if they follow her or approach her within 100 meters (yards) of her home.
It said Saturday that Winehouse posted the anti-harassment injunction outside her home.
The 25-year-old's drug problems are front page news in Britain, where she was pictured puffing on what appeared to be a crack pipe last year.
She had been a fixture in Camden — a north London neighborhood known for its music scene and drug culture. But she moved recently to Enfield, in London's far north.
Her spokesman could not immediately be reached for comment.