In order to explore an effective way to promote the dewatering of fine coal slime efficiently and quickly, multiple sets of parallel tests were carried out by using the modified hollow cylindrical torsion shear apparatus, and the dewatering process and effect of fine coal slime under the continuous action of 3 loads, the simultaneous action of 2 loads and the simultaneous action of 3 loads were compared. The experimental results show that the best dehydration scheme for continuous action is extrusion-vibration-electroosmotic; the effect of vibration dehydration is better when the extrusion pressure is small or the early stage of dehydration is better, the time required for vibration dehydration is shorter, and the vibration dehydration effect is the best when the frequency is close to the natural frequency of the solid. The effect of electroosmosis is better in the later stage of extrusion pressure or dehydration. On the basis of single extrusion, each additional dehydration measure will produce new dehydration amount and reduce the dehydration time. The dehydration effect of continuous action under the same load level is not as good as that of simultaneous action.