Abstract: The deep seismic reflection profile detection technology developed from petroleum seismic exploration. By using dynamite source, long spreads and multi-coverage, this detection technique can receive reflection signals from the crust or upper mantle. Fine time profiles within the crustal scale obtained through denoising, static, superposition and migration processes are the basis for studying the characteristics of deep structures. The deep seismic reflection profiling technique is an important means to explore the process of tectonic evolution and plays an irreplaceable role in other geophysical methods. Since it was first proposed by the United States in the last century, this exploration technique after decades of development. Relying on a series of deep exploration plans, deep reflection exploration technique has obtained many important deep reflection profiles and solved many geological problems, including the evolution process of orogenic, basin structural model, deep structural characteristics of ore concentration area and so on. Deep reflection exploration technique is nowadays a widely accepted research tool by geologists and geophysicists. At present, deep seismic reflection detection technology has developed into a systematic, mature and reliable deep structure detection method. It is often used as a pioneer in the study of deep fine structure in critical area. We summarized examples of deep seismic reflection profiles in recent years. A series of new progresses and applications of deep seismic reflection detection technology are summarized in terms of acquisition technology, data processing and comprehensive interpretation, including high-precision vibroseis acquisition technology, line drawing technology, full-waveform inversion technology, integrated interpretation, etc. The application of these new technologies not only effectively improves the imaging quality of deep seismic reflection profiles but also solves the problems of complex terrain and inconvenient acquisition in deep seismic reflection. The deep seismic reflection detection technology play an increasingly significant role in solving geological problems in critical area.