The invention belongs to the field of release materials and discloses a light release force solvent-free organic silicon release agent as well as a preparation method and application. The light release force solvent-free organic silicon release agent disclosed by the invention comprises the following components in parts by mass: 100 parts of vinyl polysiloxane, 2-20 parts of hydrogen-containing polysiloxane, 2-10 parts of an anchoring agent, 2-10 parts of a fluorine-containing release force adjusting agent and 2-10 parts of a platinum catalyst, wherein the functional group ratio of vinyl polysiloxane to hydrogen-containing polysiloxane is H/Vi=1.0-5.0. The release agent disclosed by the invention is applied to release paper. The release paper prepared from the release agent has super lightrelease force, the normal-temperature release force of the release paper is as low as 1.3g/25mm, the aging release force of the release paper is as low as 1.7g/25mm, the release paper is stable in release property and can be applied to practical production processing, and the requirements of electronic processing industries on super light release force in application scenes are met.