The Bahraini authorities are to intensify repression by banning demonstrations and meetings to ensure public safety and prevent violence, according to the state news agency.
The Sunni al-Khalifa monarchy crushed pro-democracy protests in the kingdom's Shia majority last year with Saudi military help, amid allegations of widespread use of torture.
There have been street protests and skirmishes since the crackdown, but the Government says it will now prevent any kind of protest.
"It has been decided to stop all gatherings and marches and not to allow any activity before being reassured about security and achieving the required stability in order to preserve national unity," the Interior Minister, Sheikh Rashid bin Abdullah al-Khalifa, said.
Action would be taken against anyone organising or taking part in demonstrations, he said.