A former Liberal MP once lauded by Tony Abbott for having "sex appeal" has called on the former prime minister to quit politics, saying he and his backers were destabilising the government.

Dumped Lindsay MP Fiona Scott accused Mr Abbott of backstabbing his colleagues in an attempt to reclaim the Coalition leadership, and suggested his loyalists' conduct was undermining Mr Abbott's legacy.

"This war has to end. If we keep going through who voted for where and how, it means nothing," she told Sky News on Wednesday night.

"It's not going to help our country, it's not going to help our economy ... I think some of these guys need to clock off, and I include Tony Abbott in that, I think it's time he goes.