"It has been decided to drop cricket because of a tight schedule," said Ahmed Abdulla Al-Khulaifi, deputy director general of the Doha Asian Games Organising Committee (DAGOC).
"Also, the Asian Cricket Council (ACC) was willing only to promise junior (Under-19) teams for the event," he added.
Al-Khulaifi security would be tight for the Games, in which over 10,000 athletes from 45 countries are expected to take part.
"We have security plans in place to provide a trouble-free games. Terrorism is a global menace and it is not just in one country," Al-Khulaifi said at a press conference on Monday.
Qatar will be the first Arab country to host the continental games and he promised a spectacular event from December 1 to 15, 2006.
"We have a vision to produce the biggest and most successful Asian Games ever and also the most memorable one in history," he said.