The invention provides a roll sticking prevention lithium battery cathode material and a preparation method thereof. The cathode material is prepared by the following raw materials of, by weight, 50-96 parts of carbon powder, 0.5 part of a conductive agent, 0.6-2.0 parts of a thickening agent, 2.0-3.0 parts of an adhesive, 5-10 parts of an oiliness agent and a proper amount of deionized water. The preparation method comprises the following steps of a. weighing the carbon powder, the conductive agent, the thickening agent, the an adhesive, the oiliness agent and the deionized water according to the above weight parts; b. adding the thickening agent into the proper amount of the deionized water, stirring for 3-5 hours with a high speed, standing for 3-5 hours to prepare a thickening agent aqueous solution with a solid content being 1.0791%-2.5% by mass; c. adding the conductive agent, stirring for 0.8-1.2 hours with a high speed; d. adding the oiliness agent, stirring for 0.8-1.2 hours with a high speed; e. adding the adhesive, stirring for 0.8-1.2 hours with a high speed; f. adding the carbon powder in four times, adding half the amount for the first time, and adding a half of the left amount for the subsequent time, stirring for 8-12 minutes with a low speed after the addition of each time to make the carbon powder moist enough; and g. stirring for 3-5 hours with a high speed, vacuum-pumping and stirring uniformly at a low speed to obtain the roll sticking prevention lithium battery cathode material.