The invention discloses a large electronic and electric equipment ocean transportation corrosion control method. The method comprises the following steps that (1) the internal space of to-be-packagedlarge electronic and electric equipment is measured, the number of gaseous phase rust-proof diverging boxes and drying agents are calculated, the positions of all key electron components in the largeelectronic and electric equipment are observed, the key electron components serve as key protection objects, and the containing positions of the gaseous phase rust-proof diverging boxes and the dryingagents are designed; (2) whether metal structure pieces of the large electronic and electric equipment have a rusting condition or not can be detected, and the rusted metal structure pieces can be treated as follows if the metal structure pieces of the large electronic and electric equipment have the rusting condition; (3) the large electronic and electric equipment is sealed and packaged; and (4) a wooden case is adopted for packaging and fixing the packaged large electronic and electric equipment. The large electronic and electric equipment ocean transportation corrosion control method is good in preservative effect, convenient to operate and low in cost.