Abstract: The dynamic compaction is a common technology for ground treatment. Based on the tests on dynamic compaction vibration at test site of ground treatment project of a company’s second stage filled area, the attenuation relation between acceleration of dynamic compaction vibration and measuring point distance is analyzed. While the attenuation relation between speed of dynamic compaction vibration and measuring point distance is also analyzed. The relation between level of dynamic compaction, vibration acceleration and speed at measuring points are studied. The relation between number of compacting, vibration acceleration and speed at measuring points are also studied. The roles of vibration isolation trenches are evaluated. The test site is divided into different vibration coverage zones (vibration vulnerable zone, basic safe zone, safe zone) according to corresponding standards. The grounds and structures of buildings are combined to put forward the proposals for construction and improvement of dynamic compaction.