Cyclone Sidr passed on the southwestern part of Bangladesh and induced storm surge disasters affecting 8.9 million people in November 15, 2007. From the point of disaster mitigation on storm surges, we surveyed damages of this disaster and assistance needs for recovery in damaged areas. Long stretch of river embankments was eroded by overflowing during the storm surge. Cyclone warning was transmitted to many people through the system based on Cyclone Preparedness Program. Continuous disaster education and succession of disaster experiences are important as well as improvement of river embankments.