Al-Arabiya television said the group was plotting the attack for the Muslim holy month of Ramadan, which starts on about 20 August.Kuwaiti officials say they have arrested six members of a "terrorist cell", linked to al-Qaeda, who were planning to attack a US military base.
An interior ministry statement said that all six had confessed to the crimes after they were arrested.
The statement said they also planned to bomb the HQ of Kuwait's internal security agency, AP reported.
It mentioned other "important facilities" in the oil-rich kingdom, but gave no further details.
Camp Arifjan is a vast, purpose-built $200m (£120m) camp, and is the main US base in Kuwait.
It houses 15,000 US soldiers and is heavily protected.
BBC NEWS | Middle East | Kuwait 'foils US army base plot'
Good on the Kuwaiti officials for there swift action and investigation against Al Qaeda.