The invention discloses a novel antirust agent. The novel antirust agent is prepared from the following raw materials in parts by weight: 20 to 30 parts of mineral oil, 8 to 16 parts of paraffin, 7 to15 parts of gelatin, 4 to 11 parts of saturated polybasic carboxylic acid, 9 to 15 parts of quaternary ammonium bis-imidazoline, 7 to 12 parts of soap octadecylamine, 2 to 5 parts of borate, 5 to 10parts of fatty glyceride, 6 to 13 parts of diethanolamine saponin, 2 to 3 parts of ammonium nitrate, 3 to 4 parts of surfactant, 2 to 4 parts of penetrant, 1 to 2 parts of preservative, 1 to 4 parts of dispersant, 2 to 3 parts of passivant and 20 to 30 parts of deionized water. According to the novel antirust agent, corrosive substances such as water, carbon dioxide, oxygen and the like in air areeffectively isolated from the surfaces of materials, so that the characteristics of convenience, economy and good antirust effect are achieved, the performance is stable, and the antirust time is long.