Taking the No. 2 tunnel of Li yan long keng in Jinhua City, Zhejiang Province as the research object, the blasting dynamic response of lining in the grade III surrounding rock was investigated. The blasting vibration of the blasting tunnel and the adjacent tunnel was measured by the MinimateProTM vibration monitor. The numerical analysis of the double tunnel was carried out using Midas GTS NX. The results show that, the maximum value of vibration velocity and displacement of the blasting tunnel occurs at the vault, and the value in the transverse direction is smaller than that in the longitudinal and vertical direction. For the longitudinal direction, the peak particle velocity at the position of arch and shoulder is larger than that at the other key positions. The variation trend of vertical displacement and velocity of each key position is the same, and the value at the position of arch is maximum. The maximum stress of the primary support of tunnel is located at the arch waist. For the excavated tunnel, the maximum stress occurs at the left arch waist, the maximum velocity and displacement is located at the left arch shoulder. The longitudinal distance between the lining of the existed tunnel and the working face of the back tunnel should change from 15 m to 20 m. The results of this study can provide guidance for blasting construction of double-hole tunnels.