The LBM pseudo-potential model was used to simulate the cavitation bubble collapse process in the near-wall region. The effects of different vapor and liquid phase viscosity coefficients on the maximum micro-jet flow velocity, collapse pressure and collapse time during the cavitation bubble collapse process were analyzed. The results show that under the same liquid phase viscosity coefficient, when the viscosity coefficient of the vapor phase is changed, the maximum micro-jet flow velocity, collapse pressure and collapse time remain unchanged. When the vapor viscosity coefficient remains unchanged, the maximum collapse pressure and the maximum micro-jet flow velocity decrease with the increase of the liquid phase viscosity coefficient, while the maximum collapse time increases with the increase of the liquid phase viscosity coefficient.