Anti-rust oil with high salt spray resistance

The invention discloses anti-rust oil with high salt spray resistance. The anti-rust oil is prepared from the following components in parts by mass: 30-35 parts of base oil, 8-9 parts of an anti-rust additive, 3.5-6 parts of a film-forming agent, 0.2-0.3 part of an ethylene oxide-propylene oxide segmented copolymer and 54-58 parts of solvent oil. According to the invention, the ethylene oxide-propylene oxide segmented copolymer is introduced into an anti-rust oil system, and the ethylene oxide-propylene oxide segmented copolymer is matched with the film-forming agent composed of the oxidized wax, the oxidized wax ester and the oxidized wax calcium soap according to a specific ratio, so that on one hand, an oil product can be clarified without precipitation at a low temperature and has good low-temperature stability; on the other hand, an anti-rust film formed on the surface of the metal workpiece can be compact and firm, so that the salt spray resistance of the anti-rust oil is greatly improved, and the anti-