The invention discloses a stud type roll surface structure for a rolling mill and a method for replacing studs. The stud type roll surface structure comprises a roll sleeve and studs, wherein the studs (2) are in staggered arrangement and fixed in stud holes which are formed on the outer surface of the roll sleeve (1) through adhesives (3) in a form of clearance fit assembly. In the method for replacing the studs, when the studs (2) are damaged, the studs (2) are heated to the temperature of between 180 and 200 DEG C, and the adhesives (3) lose adhesiveness. Due to the adoption of the clearance fit between the studs (2) and the stud holes of the roll surface, the damaged studs (2) are easily pulled out and replaced by new studs (2), and the roll sleeve (1) can be continuously used. The stud type roll surface structure for the rolling mill has the characteristics of high hardness, deep hard layer, strong abrasion resistance, replaceable studs, long service life, and the like, and can reduce the equipment maintenance cost and the equipment maintenance time, and effectively improve the equipment operation rate.