The summit is due to take place in the next few days.
Al-Maliki told a news conference the crisis summit would discuss the main issues in the political process. The Iraqi governing coalition has been fraught by infighting.
Most recently, the largest Sunni bloc, the Iraqi Accordance Front, withdrew from the cabinet.
Seventeen ministerial posts in al-Maliki's government are either empty or filled by members boycotting cabinet meetings
(Reuter, AFP)