The optically variable ink composition is composed of an optically variable pigment that accounts for 1 to 60% of the total weight of the ink, a binder that accounts for 1 to 95% of the total amount of the ink, and an ink adjuvant that accounts for 0 to 20% of the total weight of the ink. At the same time, it also relates to the use of the ink composition. The optically variable ink composition is convenient to use and can be normally used on any known printing device. The high-definition scanner and the color copying machine have strong anti-counterfeiting, non-toxic, and no radiation, and the printing adaptability is good.