In response to the technical problems of traditional integral active drill pipes, such as complex assembly and disassembly, low replacement efficiency, the need for overall replacement due to wear, and high replacement costs, a detachable active drill pipe was developed. By in - depth analysis of the basic requirements of the detachable active drill pipe, a technical solution for the split - type structural design was proposed, and a method for determining the optimal filling amount of thread locking agent was provided. Through simulation and numerical simulation of the failure parameters of the thread locking agent, the influence relationship among the applied torque, the maximum contact pressure, and the maximum contact torque was ascertained, and the applied torque value for the failure of the thread locking agent was obtained, which provided data reference for reducing the number of experimental tests and experimental costs. Finally, experimental tests, actual drilling experiments, and underground tests of the detachable active drill pipe were carried out. The results of the underground tests showed that the active drill pipe was continuous and stable during the drilling process, and there were no unsafe phenomena such as thread loosening, jamming, deformation, and fracture. It also met the requirements of applicability, safety, strength, and stability for underground applications. The worn parts could be replaced individually without the need for overall replacement. Moreover, the assembly and disassembly were convenient, and the replacement was efficient, which could effectively reduce the replacement cost and time. The research results will be used to build demonstration sites and be popularized and applied in coal enterprises such as Huainan, Pingmei, Zhengmei, Shendong, Jinmei, Fenxi, and Zhongmei, providing stronger technical support for cost - reduction and efficiency - improvement in underground coal mine drilling projects.