In this paper, in order to make daily operation cost minimum, according to the typical pumping station of the east line of South-to-North Water Transfer Project, the relationship between lift, flow, speed , efficiency of pumping device is analyzed by the model test data. The combination of water-turbine and operation scheme is determined by seeking the optimal operation scheme. The daily optimal operation model of a single-stage pumping station is established by using dynamic programming method. The optimal operation scheme of Han Zhuang pumping station is taken as an example. The results show that the optimal operation scheme can effectively reduce the running electricity cost compared with the present scheme. Introduction In recent years, in order to alleviate the shortage of water resources in the north and promote the optimal allocation of water resources, a large number of cross-basin cascades pumping station water conveyance project has been built. Pumping station is the core part of the project and its energy consumption and operating costs is bigger. Therefore, the corresponding need to run energy-saving and potential is also great. Large-scale pumping stations generally use the planned water distribution method by according to requirement to adjust the water in the intake area and combining with the conveyance capacity of main channel to develop daily water supply plan. The optimization of pumping station daily operation plan is the key link of pumping station economic operation. In this paper, based on the calculation of pumping device efficiency, the daily economic operation model of pumping station is established by considering the factors such as lift change to find the optimal daily operation scheduling scheme and rationally arrange the start-up combination and operation scheme of each unit. Therefore, the operating costs of pumping stations are reduced [1-4] . Analysis and Calculation of Performance Characteristics of Pump device According to the model test data of the existing pump system, the performance data of the pump system are obtained by the similar conversion aiming at frequency control pumping station about east route of South-to-North water transfer. By using the B-spline curve fitting method, the comprehensive characteristic curve of the water pumping prototype device can be obtained [5] .On this basis, the motor efficiency and transmission efficiency are taken into account, and the comprehensive characteristic curves of the pumping station are obtained, which provide the basic data for the optimization of pumping station operation [6-8] . The following describes the efficiency of pumping device, water pump operating conditions to determine the link to conduct a detailed introduction. 7th International Conference on Education, Management, Computer and Medicine (EMCM 2016) Copyright © 2017, the Authors. Published by Atlantis Press. This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/). Advances in Computer Science Research, volume 59