The present invention relates to a method and a composition for eliminating or alleviating phytotoxicity of methyl bromide fumigated citrus fruits, and the method comprises the steps of soaking the citrus fruits to be fumigated, draining, waxing, and fumigating, the soaking treatment is as follows: the citrus fruits to be fumigated are soaked with an aqueous solution containing salicylic acid and sodium dehydroacetate, and the waxing treatment is as follows: a wax solution containing cinnamic aldehyde is used for waxing the soaked and drained citrus fruits. The method can effectively inhibit the phytotoxicity caused by the methyl bromide fumigation, has no adverse effect on the quality of the citrus fruits, can fit post-harvest processing procedures of the citrus fruits, and has good application prospects in exporting citrus fruits.