The invention discloses a method for cultivating allotetraploid-similar corn material. The method comprises the following steps: taking self-fertile corn allohexaploid as a female parent, and taking the corn as the male parent to perform hybridization, selecting the plants with the fertile pollen in the F1 generation to perform selfing; and then identifying root tip chromosome number and elements of the progeny, and detecting the pollen fertility, selecting the plants meeting the target to perform the selfing until the selected chromosome total number is 38-40, wherein the corn-containing chromosome number is 22-28, the tetraploid perennial type corn chromosome number is 12-15, and the tripsacum dactyloides chromosome number is 0-2, and the plant with the high pollen fertility is the allotetraploid-similar corn material disclosed by the invention. By using the method disclosed by the invention, the pollen-fertile allotetraploid-similar corn is firstly cultivated under an aneuploidy chromosome simulation in breakthrough, the allotetraploid-similar corn can be used as a bridge for transferring the beneficial genes of the corn related wild species to the cultivated corn, and the material is provided for the research on the corn gene function and fertility.