The invention relates to a double-sided ultrathin antistatic organic silicon release film preparation method, and belongs to the technical field of film manufacturing. The double-sided ultrathin antistatic organic silicon release film comprises a BOPET base film with a thickness of 20 [mu]m, an organic silicon release layer and an antistatic coating, wherein the organic silicon release layer and the antistatic coating are positioned at both ends of the BOPET base film, isopropanol accounts for 20%, a ratio of an antistatic agent to a mixed dilution solvent is 1:2.5, the speed of a stirrer is 1000 r/min, the wet coating amount is 2 g/m<2>, the drying temperature is 120 DEG C, and the speed of a dryer is 10 m/min. According to the present invention, with the preparation method, the disadvantages that the presence of the electrostatic charges can cause the adsorption on the dust particles on the product surface and the electrostatic discharge so as to cause the damage on the electronic components, the fire disaster, the explosion and other disaster accidents and the like can be solved, the high anti-static effect can be obtained without the increase of the additional processing process and the additional processing cost, and the use in the place having the high requirement can be met.