Abstract: To make the exploitation of Liulin CBM reasonable and efficient, the flow velocity sensitivity, water sensitivity, alkaline sensitivity and acid sensitivity of Liulin coal samples were tested and evaluated.The results show that Shanxi coal's velocity sensitivity extent is from medium weak to medium strong and the critical flow velocity is low; The damage caused by water sensitivity is from non to medium strong; The damage caused by alkaline sensitivity is from medium weak to strong and the value of critical pH is 7.In addition, the damage caused by alkaline sensitivity of coal positively relates with the number of adsorbed hydroxide; The hydrochloric acid sensitivity index is -2.546 to 0.004 5, and no acid sensitivity.To sum up, the fluid velocity of fall should be controlled below 2 m/d to achieve a smooth pressure reduction at the beginning of CBM exploitation; 1%～2% KCl is used as clay stabilizer; the pH of operation fluid should be kept below 7.