A security source said Cairo Airport security applied the protest law to 120 policemen and dismissed them for participating in a strike.
They also ordered the arrest of six others involved in the event.
Abdel Hamid Darwish, the leader of the strike, was arrested on Tuesday.
The policemen went on strike when a colleague of theirs was dismissed for allegedly harassing a foreign tourist last Friday.
He was also allegedly found carrying narcotics.
The strike's spokesperson said the charges are false and assured that the strike was peaceful.