The present invention is a soft soil treatment method. Given soil profiles of site subsections investigated by using handy augers, coefficient of permeability and water contents of each soil stratum, rely on soil information-based control, install vacuum pipes, impart vacuum effort, uninstall partial vacuum pipes and impart vacuum-compaction efforts. Densify the site by dynamic or vibration compactions, with varied energies each cycle, to further save time and cost, eliminate the differential settlements and rubber soils, and guarantee construction quality.