Horizontal Directional Drilling (HDD) technology is widely used in the construction and repair of municipal lifeline projects, long-distance oil and gas pipeline laying, and directional survey of mountains. It is one of the key technologies of trenchless engineering. China's HDD has experienced nearly 30 years of development, has made great progress in the research and application of equipment and technology, and has created a world record. The thesis has carried out literature research from six aspects including existing underground lifeline detection technology, information technology of underground lifeline engineering, HDD equipment technology, two-way cross HDD technology, HDD drag force calculation model, risk identification and control, and analyzed HDD Research and application progress of equipment and technology. According to the material properties of underground lifelines, electromagnetic induction method, ground penetrating radar method and inertial navigation method are widely used in space detection of existing lifelines. Data analysis and accuracy improvement under complex interference are still the research focus. Based on three-dimensional data, integrating BIM, artificial intelligence, big data and other technologies, and learning from the US "811" system, the informatization of the underground lifeline has been partially completed. In terms of HDD equipment, we designed and developed the world's largest drag force (2000 tons) electric drive drilling rig; the world's longest (5100m) submarine lifeline was laid using counter-penetration technology. Process-based HDD process parameters, equipment parameters, and control and monitoring technology have been widely used, effectively improving the risk identification capabilities in the application. The calculation of the drag force under different stratum conditions provides a basis for equipment selection and provides a way for HDD multidisciplinary research. Preliminary exploration and research have also been conducted on hotspots and difficulties such as slurry eruption, drilling cuttings bed, and river flushing depth evolution under complex geological conditions, and theoretical, experimental and numerical analysis models have been constructed to provide a basis for improving the application efficiency and quality of HDD. Based on the above progress, the paper further analyzes the development trend of HDD.