Abstract: Intelligent drilling is a new drilling method with functions such as self perception, self-learning, self decision-making, self execution, and self adaptation. It represents the highest form of drilling technology development and is expected to significantly improve drilling efficiency and reduce operating costs. In response to the key challenges in real-time perception, intelligent decision-making, and integrated control of intelligent drilling, Sinopec has conducted research on key technologies such as automated drilling rigs and key equipment, geological parameter perception while drilling engineering, intelligent drilling analysis and decision-making, and intelligent drilling system integration. Integration and demonstration applications have been carried out on site, achieving multi-objective collaborative optimization of application scenarios such as intelligent optimization of drilling parameters, intelligent warning of wellbore risks, and intelligent navigation of wellbore trajectories. The closed-loop control level of intelligent assistance manual decision-making in consulting mode has been achieved, which effectively supports cost reduction and efficiency improvement in key oil and gas exploration and development fields. Based on the analysis of the problems existing in intelligent drilling technology, the latest progress in the research of key technologies for intelligent drilling in Sinopec was summarized. It was proposed to further strengthen the research on key technologies such as fully automatic drilling equipment, high-performance measurement and control systems, and digital twin decision-making systems, increase technological iteration and upgrading, and promote the transformation of intelligent drilling from consulting mode to semi autonomous and autonomous control mode.