Abstract: The problems of electro-osmotic consolidation for large scale deep soft ground, including electrode, energy consumption, electric power, theory and design method, are discussed. Innovation of EKG materials has solved the problems of electrode corrosion and high energy consumption in electro-osmotic consolidation. High electric power demand is currently a new challenge for large scale application of electro-osmotic consolidation, and the solution will be the roll polling program embedded in novel designed electric power source. The design method based on the energy level gradient theory of electro-osmotic consolidation is proposed. The time factor and flow coefficient are the key parameters of the design method. The flow coefficient has distinct scale effect, and it needs to be corrected before applied in the design.