The invention belongs to the steel technical field, and specifically, relates to shock-resistant high-abrasion-resistant steel ball steel and a preparation method thereof. The shock-resistant high-abrasion-resistant steel ball steel comprises the chemical components by the mass percentage: 0.64%-0.71% of C, 0.20%-0.40% of Si, 1.90%-2.05% of Mn, 0.90%-1.05% of Cr, 0.02%-0.05% of Al, not more than 0.02% of P, not more than 0.015% of S, not more than 15 ppm of O, not more than 1.5 ppm of H, and the balance Fe and inevitable impurities. The steel has the characteristics of good impact resistance, abrasion resistance, organization uniformity and the like, so that produced steel balls are not easy to break, are not easily out-of-round in the use process and have the advantages of high production efficiency, low cost and the like.