To address the severe strata pressure manifestations in impact-prone isolated working faces, this study takes the 3203 isolated working face as an engineering case. [Methods] By integrating theoretical analysis, numerical simulation, and field monitoring, the stress evolution characteristics before and after mining to the square stage were investigated, with a focus on the influence of hydraulic support strength and its adaptability. [Results] The results indicate that the overlying strata load from adjacent goaf transfers to the isolated working face, forming a high-stress concentration zone with an impact risk coefficient of 0.75 (moderate instability potential). When advancing to the square stage, the peak values of advanced and lateral abutment pressures reach 27.0MPa and 50 m in maximum influence range, respectively. Increasing hydraulic support strength effectively reduces roof-to-floor convergence, stabilizing at 31cm when support strength reaches 1.1MPa. Field monitoring demonstrates that the ZF9000/18/34D hydraulic support performs well, with average and maximum working resistances of 7260 kN and 8527 kN during pressure periods, ensuring safe and efficient production. [Conclusion] Enhancing hydraulic support strength effectively controls deformation and guarantees stability in isolated working faces, providing a reference for adaptability studies of hydraulic supports under similar engineering conditions.