The MediaWorks journalist and newsreader died this morning in Wellington.
She was the co-host of Newshub Nation, had regularly read the news for Newshub Live at 6 , while also working as a Wellington-based reporter.
She is survived by her husband and two children.
Jolliff had been battling cancer and her treatment had forced her off-air.
Newshub news director Hal Crawford confirmed Jolliff's death in an email to staff today, describing her as a "first class reporter".
"She was a fantastic journalist and loved telling stories. She considered it an honour to tell people's stories, and she did it so well," Crawford's email said.
"Emma was such a lovely person, a real positive presence in the newsroom and a thorough professional.
"I have had many messages today from all over the media and political spectrum, and they all mention Emma's love of story and fundamentally good nature."
