The utility model discloses a machine for drilling cooling holes in an armored superconductor. The machine comprises a base plate and is characterized in that a guide rail is arranged on the base plate; a two-dimensional movable platform is erected on the guide rail; a cutter assembly seat is arranged on the two-dimensional movable platform; a cutter is arranged on the cutter assembly seat and driven by a motor; a conductor clamping device is arranged on the base plate at the front end of the two-dimensional movable platform and comprises a fixing seat; a U-shaped groove is formed in the middle of the fixing seat; one side of the fixing seat has a hollow structure; and a locking push rod and a locking sleeve which are mutually matched are arranged on the other side of the fixing seat. The machine is formed by refitting the standard drilling tool, so that machining and limiting requirements can be met; the machine has the advantages that the machine is light in weight, can be matched with armored superconductor production lines and the like; and the size error of each machined cooling hole of the superconductor can reach 0.01mm, so that the requirement of the cooling holes can be completely met.