Abstract: 698-3 is an excellent maize inbred line breeding by Crop Institute of Sichuan Academy of Agricultural Sciences. The maize inbred line 698-3 has multiple good characters such as high combining ability, high-yield, high-quality, multiple diseases-resistance and adaptability to high densities et al. The maize hybrids which one of parents as 698-3 have such characters as high-yield, high-quality, disease-resistance, lodging-resistance and special usage. All of these maize hybrids had extensive popularized and come into being remarkable society and economic effects.