The invention provides a high-speed precise double 
servo feed drilling power head, and belongs to the technical field of drilling tools. The power head comprises a transmission case fixing base, a transmission case, a spline shaft, a spline shaft driving mechanism, a workpiece drilling mechanism and a 
servo feed control mechanism, and is characterized in that the spline shaft driving mechanism comprises a first 
servo motor, a large synchronous 
pulley, a small synchronous 
pulley and a 
transmission belt; the servo feed control mechanism comprises a second servo motor, a coupler, a 
ball screw, a lead screw nut, a sliding block, a 
stroke contactor, a driver adjustment plate, a first 
stroke limiting sensor and a second 
stroke limiting sensor; guide rails are arranged on wallboards of the transmission case fixing base, and an 
idler wheel is installed on the side face of the sliding block and is located between the two guide rails. Under the circumstance that no mechanical part is replaced, the rotating speed of a main shaft can be adjusted at will so that the requirement that different hole diameters correspond to different 
cutting speeds can be met; efficiency is high, the size is small, and the requirements for high-speed and high-precision 
machining of 
small hole diameters can be met; it is guaranteed that the main shaft has good straightness and good rigidity; the automated 
control effect is good.