Based on the theory of boundary layer and analysis of the velocity field of main flow , the thesis also derives the vane shape equation . in the equation , （ angle of pump vane ） is variable parameter , （ velocity coefficient ） is introduced as medium factor , which connects the theory of boundary layer with the eular theory . it provides a valuable reference for the designation of vane of pump 基于离心泵叶片边界层理论和对主流区速度场的分析，给出了离心泵叶片型线参数方程，它以叶片角为变参数，引入速度系数作为中间因子，将边界层理论和欧拉理论联系起来，并在离心泵叶轮的设计过程中统一起来，能够在设计中就根据实际的需要防止或控制过流表面的边界层的分离。
