With the development of vacuum preloading on disposing the special soft soil foundation, the mechanism of the soft soil consolidation has been a subject for researching. Formulation of the fractal theory can provide new ideal for the study of nonlinear system on soft soil. The prospect was studied by the fractal theory, which directed against the problem of the soft soil consolidation with vacuum preload and the fractal phenomenon of soil. The feasibility of fractal study on soft soil consolidation with vacuum reloading was proofed from the macroscopic and microscopic respect.