Abstract: With the accelerated advancement of industrialization and the continuous development of cities, the production of sludge has been increasing significantly, making sludge dewatering and consolidation a research topic of substantial importance. Aiming to enhance the efficiency of sludge dewatering, this study took kaolin as the research object and prepared a mud solution with a solid-liquid ratio of 1:2. A total of 8 groups of single-factor tests were conducted to investigate the combined effects of electroosmosis and conventional mechanical dewatering methods (using only mechanical pressure) under different conditions, with conventional dewatering tests set as the control group. The single-factor tests were designed to determine the influence of individual factors on the dewatering effect: mechanical pressure, power-on start time were found to have a significantly positive correlation with cumulative drainage volume and average drainage rate, and the optimal cumulative drainage volume was observed at a current density of 3 mA·cm⁻². On this basis, a three-factor three-level orthogonal test was carried out. The analysis revealed that the order of influence from primary  to secondary was mechanical pressure > percentage of advanced power-on (compared with the time threshold point of the filtration-compaction stage under corresponding mechanical pressure) > current density. Mechanical pressure exhibited a significant effect (p=0.03<0.05), while the effects of the other two factors were relatively weak (with p-values of 0.23 and 0.21, respectively). The results clearly demonstrate that the combined action of electroosmosis and mechanical methods can effectively improve the efficiency of sludge dewatering and consolidation.