Abstract: Zhaogu No. 2 Coal Mine is in the eastern area of Jiaozuo Coalfield, at the southern foot of the Taihang Mountain. The primary mineable coal seam of the mine is buried at a depth of more than 700 m, with an average thickness of 6 m and a hardness coefficient of 2-3. Influenced by orogenic movement, the thickness of the overlying bedrock is only 0-120 m, above which lies an alluvial formation with a thickness of more than 600 m, coupled with well-developed fault structures in the strata, all of which bring severe challenges to roof control in thick coal seam mining. To provide scientific guidance for the safe mining of deep-buried thick coal seams with thin bedrock, the mining practice of Zhaogu No. 2 Coal Mine is taken as the engineering background, and the research progress of thick coal seam mining and surrounding rock control technology under deep-buried weakly cemented overlying strata is systematically summarized. Zhaogu No. 2 Coal Mine has formed a mining layout progressing from east to west (from shallow to deep). In the slicing mining stage, the upper slice mining had a high concentration degree of advanced mining-induced stress, but the mining thickness was small, so the failure degree of surrounding rock was low. In contrast, the lower slice mining had a low concentration degree of advanced mining-induced stress, but the fractured roof affected by upper slice mining had a large subsidence, resulting in roof leakage and caving problems. In addition, slicing mining required a large width of coal pillars, leading to a high roadway drivage rate. To solve the problem of tight mining and drivage succession in the mine, the large mining height mining technology for deep-buried thick coal seams with thin bedrock was developed, and the three-stage movement characteristics of the full overburden were identified, including the progressive fracture stage of bedrock, the development stage of caving arch in thick alluvial formation, and the development stage of surface fissures. A composite load-bearing structure model of overburden caving arch and towering roof beam at the arch foot was established, the formation mechanism of full-thickness fracture of thin bedrock and dynamic load impact effect of roof was revealed, and a multi-element synergistic surrounding rock control technology for the working face was developed, integrating "high-strength and high-stiffness support, pre-split blasting of hard roof, and advanced grouting of coal wall". To resolve the contradiction between thick coal seam mining and coal wall reinforcement, innovative practice of top-coal caving mining for deep-buried thick coal seams with thin bedrock was carried out. The roof pressure and the failure degree of coal wall were significantly reduced, but problems such as hanging of hard top-coal and caving of large coal blocks still existed, with the measured top-coal recovery rate of only 65%. To improve the cavability of top-coal, the ZFG17600/29.5/50D top-coal caving hydraulic support was developed. By increasing the cutting height (with a mining-to-caving ratio of 2∶1), widening the roof control area, and optimizing the caving mechanism, the fragmentation process of top-coal was effectively promoted.