】提出了一种新的轴流式透平叶栅叶型的正设计方法。首先采用了二次曲线来生成初始叶型，以保证叶型型线具有良好的保凸性，再用高阶Ｂｅｚｉｅｒ函数对其进行高阶光滑，以保证其具有良好的流动性能。利用该方法所设计的叶型具有较高的效率和良好的气动性能。给出了已投入使用的叶型与该方法生成的叶型的性能比较，从结果可以看出，所生成的叶型是较为理想的。 ] Proposed a new type of axial flow turbine cascade positive design method. First of all, a quadratic curve was used to generate the initial leaf shape to ensure that the leaf shape line has a good convexity preserving property. Then the high-order Bezier function was used to smooth it to ensure its good flowability. The leaf pattern designed by this method has high efficiency and good aerodynamic performance. The performance comparison of the leaf types that have been put into use and those of the leaf types produced by this method is given. It can be seen from the results that the leaf types generated are ideal.