The vertical colloid mill is operated by means of the relative movement of the different geometric shaped gear-stator and gear-deadweight, centrifugal force etc. the materials to be processed enter into the mill Then, under the action of the strong shearing, fractioning and high frequency vibration forces within the variable annular clearance, they will be effectively dispersed, pulverized, emulsified, homogenized and mixed coherently. Thus the satisfactory products will be obtained.