News agencies say this paves the way for the prime minister and longtime de facto ruler, Sheik Sabah Al Ahmed Al Sabah, to become the country's new emir.
The 75-year-old emir is expected to sign the abdication papers tomorrow. The government, led by Prime Minister Al Sabah, had asked parliament to remove him from office.
The move will end a power struggle that developed following the death of the country's emir, Sheikh Jaber al-Ahmed al-Sabah, on 15 January. He had ruled for a quarter of a century.
Kuwait's parliament will meet tomorrow for an unprecedented session to consider who should be the nation's new ruler.
(compiled from agencies)