The invention relates to a drilling device, in particular to an accurate drilling device for a watchband of a smart watch. According to the technical purpose to be achieved, the accurate drilling device for the watchband of the smart watch is provided and is accurate in drilling. In order to achieve the above technical purpose, the accurate drilling device for the watchband of the smart watch is provided and comprises a support, a first supporting rod, a second supporting rod, a first sliding rail, a third supporting rod, a second sliding rail, a second sliding block, a first rack, a gear, a limiting rod, a first connecting rod and the like. The inner top of the support is sequentially connected with the second sliding rail, the third supporting rod, the first sliding rail, the second supporting rod and the first supporting rod from left to right in a welding manner. The second sliding block is arranged on the second sliding rail in a sliding manner, the right side of the second sliding block is connected with the first rack in a welding manner, and the bottom of the first rack is connected with the limiting rod through a bolt. The accurate drilling device has the beneficial effects that the structure is simple, operation is easy and convenient, and drilling is accurate; and in addition, the labor intensity is low, and generalizability is high.