简要介绍了传统除油除锈方法及存在的缺点，重点介绍了一种加有添加剂的新型低温一步法除油除锈前处理技术及主要特点，通过工业化实际应用，证明该技术先进、工艺成熟，具有工艺流程简单、节约能耗、有效期长、使用成本低、产品性能优良等优点，经济效益和社会效果显著。 A brief introduction of the traditional degreasing and rust removal methods and their shortcomings are given. A new one-step low temperature one-step degreasing and rust removal pretreatment technology and its main features are introduced emphatically. The industrial application shows that the technology is advanced and the technology is mature , With the advantages of simple process, energy saving, long period of validity, low cost of use and good performance of the product, and has obvious economic and social effects.