Greens MP Adam Bandt has warned that Question Time in Parliament is threatened by the Opposition's censure motions and other stunts and the Prime Minister then ending Question Time early.

Mr Bandt said he would seek advice from the Clerk of the House about what options existed to protect Question Time.

 "Almost half of the period for questions this sitting week was lost to the Parliament because of the Opposition's tactics and the Government then ending Question Time early," Mr Bandt said today.

 "Question Time in the House of Representatives is the fulcrum of the Parliament and a key part of the keeping governments accountable."

"This accountability is now under real threat because of the antics of Tony Abbott and the Coalition."

"I will seek advice from the Clerk on what options are available to protect Question Time when Parliament resumes."