Abstract: Based on the currently-building Guigala Expressway tunnel engineering, the authors use the hydraulic fracturing method and numerical analysis method to obtain in-situ stress measurement data and the stress distribution characteristics of the tunnel and the hole body. The direction of the maximum principal stress is figured out. The uniaxial loading and unloading of the rock stress-strain curve is used to calculate the elastic strain energy indices of the surrounding rock. Rock mechanics index and the relationship between rock burst occurrence are analyzed. Data of deep hole drilling, rock mechanics test, hydrological test are used to comprehensively analyzes the tunnel rock burst occurrence. The results show that the maximum principal stress is the horizontal stress with the direction of NE40.9°. The measured maximum principal stress value is 23.81 MPa and the corresponding value of numerical calculation is 24.68 MPa, indicating that the numerical calculations are consistent with the measured in-situ stress distribution law. The elastic strain energy index test of rock shows that the two long granite and SLATE of black mica have energy storage and energy release conditions for medium-strong rock burst and low-strength rock burst, respectively. The length of the medium-strong rock burst section of the tunnel is 3.0 km, and the length of the low-intensity rock burst section is 3.3 km.