The equilibrium geometries,excitation energies,force constants and vibrational frequencies for the low-ly-ing electronic states X ~2B_1,~2A_1,~2B_2 and ~2A_2 of the AsH_2 radical have been calculated at the MRSDCI level witha 3-21G~* basis set.Our calculated geometries,excitation enegies and vibional frequencies for theX ~2B_1 and ~2A_1 states are in good agreement with available experimental data.The electronic transition dipole mo-ments,oscillator strengths for the ~2A_1→X ~2B_1 and ~2A_2→X ~2B_1 transitions,radiative lifetimes for the ~2A_1 and~2A_2 states are calculated based on the MRSDC~1 wavefunctions,predicting results in reasonable agreement withavailable experiment.