中文摘要：

论述了钙钛矿型氧化物电子能带结构的几种常用计算方法：即赝势方法、线性缀加平面波方法（LAPW）、全电势LAPW方法（FLAPW）和线性化Muffin-tin轨道方法（LMTO）等,并采用赝势方法计算了BaTiO3材料的电子能带结构和光学性质,且将计算所得结果与FLAPW方法、TB-LMTO方法及其它方法的计算结果进行比较,发现这些能带计算方法有着各自的优缺点,但总体来说赝势方法和FLAPW方法是目前基于密度泛函理论（DFT）中计算能带结构较为准确的第一性原理计算方法.

英文摘要：

The paper gives a review of the calculation methods of electronic band structure of perovskite oxides in the first place. Then the paper makes a calculation of the electronic band structure and the optical properties of BaTiO3 by using the pseudo-potential method, and then compares the results with the results obtained by using the FLAPW method or TB-LMTO method, etc. It is found that all of these methods have their advantages and disadvantages, yet in general the pseudo-potential method and the FLAPW method are the more accurate calculation method based on the density function theory （DFT）.