The invention discloses a preparation method of lithium ion battery coating pole piece. The preparation method comprises following steps: (1) weighing and dissolving a binder in a solvent, vacuum stirring for 1 to 10 hours to obtain a homogenous solution; (2) adding solid electrolyte powder to the solution prepared in the step (1), vacuum stirring for 1 to 12hours to obtain a solid electrolyte-binder-solvent mixture; (3) evenly coating the mixture prepared in the step (2) on the surface of the battery anode electrode, obtaining a solid electrolyte coating layer, which has a dry thickness between 2 and 5 [mu]m, after the mixture dries; (4) rolling the whole anode electrode prepared in the step (3) with a roller machine, and obtaining the lithium ion battery coating pole piece. The preparation method adds a solid electrolyte layer between the electrolyte liquid and the electrode active material, so that in the situation that active material lithium ion de-intercalation is not affected, contact between active material and electrolyte liquid can be effectively prohibited, oxygenolysis of electrolyte liquid under high voltage is reduced, and battery circulation lifetime is increased.