The utility model relates to a soft soil foundation excitation device of digging a well, it is including the steel pipe of digging a well, vibration hammer, pressurization hammer and fall water well pipe. A method of soft soil foundation excitation device of digging a well's construction, the steel pipe of at first will digging a well is driven underground, fills up the medium coarse sand in the steel pipe of digging a well, then mentions the steel pipe of digging a well, and the medium coarse sand forms the sand well, and then will dig a well during the steel pipe squeezes into the sand well,and water well pipe falls in last the input in the steel pipe of digging a well, and it can to take out the steel pipe of digging a well. The utility model discloses soft soil foundation excitation device of digging a well mainly solves the precipitation construction requirements in the unable complicated place of adaptation of current drilling machinery. Owing to adopt the method of vibration pore -forming, steel pipe dado, the consequently adaptable different soil properties construction of digging a well owing to take strike -on cheng jing's technology, the medium coarse sand by even compaction at the pore wall, form from last on and complete drainage layer, lay a good foundation for reducing underground water level, reduction soil body water content.