In order to study the vibration propagation attenuation law of high-energy dynamic compaction loess foundation, based on the laboratory model test, three measuring lines were arranged vertically, horizontally and diagonally to study the vibration impact of the changes of parameters such as compaction times, moisture content, compaction energy, falling distance and hammer diameter on the high-energy dynamic compaction loess foundation, and combined with the field vibration test results of Qingyang loess high-energy dynamic compaction reinforcement project in Gansu Province. The reliability of the indoor model was verified by comparison. The results show these as follows. For the loess area, when a certain number of tamping times are reached, increasing the tamping times can not further improve the dynamic consolidation effect. The minimum vibration safety distance can be judged according to the maximum value of the measured vibration acceleration, and only the vibration acceleration on the ground surface needs to be used to calculate the vibration safety distance. The change of moisture content of foundation soil has little effect on the vibration acceleration. When the moisture content is the best moisture content, the peak value of vibration acceleration is slightly higher than that of other moisture contents, the attenuation range is slightly larger, and the reinforcement range is slightly wider. The change of energy level has a great influence on the change of vibration acceleration. The larger the energy level is, the stronger the vibration is and the wider the influence range is. The vibration attenuation rate of “light hammer falling high” is similar to that of “heavy hammer falling low”, but the “heavy hammer falling low” has deeper reinforcement depth and wider influence range, so “ heavy hammer falling low” should be preferred in actual projects. Compared with the small diameter rammer, the large diameter rammer has a shallower reinforcement depth and a wider impact range of surface vibration, so the small diameter rammer should be preferred in practical projects. The vibration acceleration attenuation curve fitted by model test and field monitoring data can be well connected, which proves the reliability of laboratory test results. [ABSTRACT FROM AUTHOR]