The rust removal effect of neutral rust removal agent may be worse than the traditional chemical rust removal method, but it has the advantages of safety, environmental protection and easy treatment in the use process. Therefore, in practical application, the application scope of neutral rust removal agent is expanding. In addition, with the continuous development of science and technology and the continuous improvement of neutral rust removal agent technology, its rust removal effect is also constantly improving, and it is expected to become an important trend in the field of rust removal in the future.