Outgoing Prime Minister Erna Solberg will step down later this week, she told parliament on Tuesday.
She is expected to be replaced by Labour Party leader Jonas Gahr Stoere, whose side won elections last month. He is expected to take power on Thursday.
"I will ... present during the King's Council today at 1300 (1100 GMT) an application for the government to resign," she told parliament.
Solberg's government lost last month's election for parliament and will be replaced by a coalition of the leftwing Labour Party and the rural Centre Party, in an election dominated by climate change and a growing wealth gap.
