Abstract: To investigate the stability impacts of existing goaf groups on the main drifts in Level 2 and Level 3 of Level an underground mine, this study utilized 3Dmine software modeling to statistically analyze the current state of goafs. A 3D numerical model was subsequently developed for computational simulations, focusing on the maximum/minimum principal stresses, displacemen it. and plastic zones induced by the goaf groups. Analysis results indicate that the maxi-mum tensile stresses are approximately 0.85 MPa and 1.34 MPa, with settlement displacements in most areas below 2.0 cm. Plastic zones are sporadically distributed without connectivity or coalescence trends, suggesting a low probabilitv of large-scale plastic failure. Based on goaf geometries and subsequent mining plans, treatment strategies such as caving methods and fullv enclosed reinforced concrete Wave-blocking wals are proposed. Additionallv. reinf orcer ment support measures for stress-concentrated zones are recommended to ensure the safety of main drifts and mining operations.