Abstract: Abstract: The roof of No. 2119 panel is broken in Fanjiacun coal mine. It will influence the quality of the support during the formation of the withdrawal gateway and the rate of hydraulic support retracement after the end of the mining. This paper takes 2119 panel as an example to introduce the use of constant resistance and pressure relief anchor cable support technology and roof pre-split technology under the condition of broken roof, which improves the safety of the roof of the reserved withdrawal gateway and working conditions during the process of hydraulic support retracement. The length of the constant resistance and pressure relief anchor cable support is determined to be 11.3m, the cutting height is 11m, the cutting angle is 20 °, the bidirectional pre-split cutting charge blasting structure is 3 + 3 + 2 + 2 + 2 + 1. Finally, the field monitoring shows that: The deformation of the withdrawal gateway roof and floor is 445mm during the withdrawal of the panel. The stress value of the constant resistance and pressure relief anchor cable finally stable at 288KN, the deformation of the withdrawal gateway is small, and there is no support crushing accidents. Achieving safe, rapid and smooth withdrawal of the support in fully mechanized panel. It provides a reference significance for the safe and rapid retracement of the support of the panel with reserved withdrawal gateway in other similar geological conditions.