One of the major technological challenges in roadway excavation is the implementation of hydraulically powered, high-strength temporary supports, the current temporary support system cannot provide active support, and it is easy to separate the top plate of the roadway from the layer at the start, controlling the first departure of the roadway roof is critical for the stability of the roadway's surrounding rock, especially on particularly loose and soft rock roadways. The engineering backdrop for this research is the Sail Six Mine's A4027 return airway, identify the issues with the A4027 return airway's temporary support, the concept and principle of hydraulically driven high-strength temporary support technology are proposed, the mechanical analysis model of the stacked roof in the temporary support region is constructed, and the critical circumstances of the top plate delamination are determined, quantified the link between the delamination difficulty parameter Q, the temporary support distance L, and the temporary support strength q; Flac3d's numerical simulation was used to model the relationship between the temporary support's strength and the deformation and stress of the rock on the roof, the overall temporary support strength q for the A4027 return airway has been determined to be 10 kN/m2, and the temporary support distance L is 2 m; Developed hydraulically driven high-strength temporary support devices and conducted strength test tests and field trials, The test results showed: the top board's initial off-layer control is better, and the temporary support region support effect is noticeable, the maximum value of the top plate off the seam during excavation is only 34mm, and the sinking amount of the top plate does not exceed 68mm, which effectively limits the deformation of the surrounding rocks of the very soft coal seam, providing lessons for other roadways with similar conditions.