采用交直流电场对原油进行脱盐脱水具有脱盐效率高、能耗低、适应性强、操作简便等优点。本文对交直流脱盐技术的原理、特点以及影响原油脱盐效果的各种因素进行了讨论，并结合本厂实际介绍了应用交直流脱盐技术，在对高含盐川中原油和酸值较高的中原原油进行脱盐脱水生产试验中优化操作取得的成功经验 Adopting AC and DC electric field to desalinate and dewater the crude oil has the advantages of high desalination efficiency, low energy consumption, strong adaptability and easy operation. In this paper, the principles and characteristics of the AC and DC desalination technology and the various factors that affect the desalination effect of the crude oil are discussed. In combination with the actual situation of the factory, the application of AC and DC desalination technology is introduced. Crude oil for desalination and dehydration in the production of the successful operation of the successful experience gained