Equipment corrosion protection can reduce the cost of equipment maintenance and the impact of corrosion on equipment safety and combat readiness. Natural environment test, laboratory accelerated test and simulation test are the three most important means for investigating corrosion and its regularity of materials and equipment. Because of the advantages of low cost, short time and application in complex systems, simulation test is becoming more and more popular. Foreign countries have developed many numerical methods such as finite differential method, finite difference method, finite element method and boundary element method, and established various corrosion databases. Our country has also carried out decades of accumulation of natural environmental corrosion data. Corrosion simulation studies have been carried out in missiles, aircrafts, ships, etc. However, there is still a lack of research planning and evaluation systems. Also, simulation accuracy and reliability need to be improved. In the future, equipment corrosion simulation test should strengthen data accumulation and standard development, and develop towards the direction of full life, whole size, interoperability, credibility, reusability and big data mining.