提出了构造碳原子1s~22s~22pns~3P态波函数的新方法,以Rayleigh-Ritz变分法为基础开发了一套计算碳原子1s~22s~22pns~3P态波函数和能量的Mathemtica程序,具体计算了碳原子1s~22s~22pns~3P(n=3～6)态的波函数和非相对论能量及其相对论修正值(包括质量修正、单体达尔文修正、双体达尔文修正、自旋-自旋接触相互作用修正),计算结果与实验值非常接近. A new method of constructing wave functions of 1s ~ 22s ~ 22pns ~ 3P for carbon atoms is proposed. Based on the Rayleigh-Ritz variational method, a set of Mathemtica programs for calculating the wave functions and energies of 1s ~ 22s ~ 22pns ~ , The wave functions and the nonrelativistic energies of the 1s ~ 22s ~ 22pns ~ 3P (n = 3 ~ 6) states and their relativistic corrections (including mass correction, monomer Darvin correction, Darwinian correction, spin - spin contact interaction correction), the calculated results and experimental values ​​are very close.