In order to explore the development height of caving zone and water conduction fault zone under geological and mining conditions in Qinglongsi Coal Mine, comprehensive research methods of ground drilling, borehole loss observation method, color drilling TV imaging technology, empirical formula and analogy analysis are adopted. Height of overlying rock caving zone and water conduction fault zone in 5 - 20101 and 5 - 20105 working faces of the mine was measured and its particularity was analyzed. Results show that the maximum height of caving zone in Qinglongsi Coal mine is 9. 7~17. 0 m, and the caving ratio is 4. 1~7. 4. The maximum height of the water-carrying fracture zone is 41. 47 ~ 46. 87 m, and the fracture production ratio is 17. 4~20. 4. The advancing speed of the working face can affect the turning angle of the overlying strata and the formation of stable structure. The development height of caving zone and water conduction fault zone under the geological and mining conditions of the high - strength rapid advancing fully mechanized mining face is characterized by the large development height of the caving zone and the water conducting fracture zone.
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