Abstract: To address the issue that traditional chucks lack the capability to monitor tool wear status due to the absence of sensing functions, a self-sensing intelligent chuck system integrated with multiple sensors was designed. Based on the K11-250 three-jaw chuck, the intelligent chuck system was developed. Through modular design with embedded sensors, the real-time online measurement of three physical quantities, namely radial clamping force, drilling torque, and axial drilling feed force, was achieved. Calibration experiments indicated that the measurement errors for drilling torque and drilling feed force were maintained within 4.97%. Furthermore, wear monitoring experiments during the drilling process demonstrated that with the increase of wear, both drilling torque and drilling feed force exhibited an upward trend accompanied by intensified signal fluctuations. It was verified that the intelligent chuck system could correctly capture wear characteristics and possess excellent dynamic response capabilities. Consequently, real-time measurement and monitoring of the drilling process were realized by this design, providing a new perspective for the research and development of integrated intelligent fixtures.