Abstract: In order to solve the problem of high energy consuming and low efficiency of ordinary ball mill in graphite regrinding process, under the premise of stating the design requirements of regrinding equipment, developing the GJM bar type stirred mill. During the researching and developing, considering similar amplification as basic design principle, determining the cylinder tank with height-diameter ratio is 1∶1～2.5∶1, confirming the 2～10layers-each layer 1～8stirring arms spiral-up layout style on the stirring shaft, using the motor and reducer box direct transmission way. Meanwhile, we apply the knowledge of mechanics to analyze the force status and movement form, and using the calculation of shaft power to confirm the installed power of mill. We analyze the influence way to the product size of stress intensity under the specific energy input, obtaining the conclusion of stress intensity in the(0.1～0.5)×10^-4 N·m can gain the best product size easily. In the end, we put the mill and ball mill in the graphite regrinding process, gaining about 25% energy saving than ordinary ball mill, demonstrating the huge potential application in the graphite industry.