The vibration and K type rotational energy levels of the 2A 1 and 2B 1 state of NH 2 radical were calculated with the extended large amplitude bending vibrational Hamiltonian and matrix transformation approach, also considering the Renner teller effect. 利用大振幅弯曲振动哈密顿和矩阵变换方法,考虑RennerTeller效应,计算了NH2自由基A2A1,X2B1态电子弯曲振动和K型转动能级。