Abstract: Through summarization and optimization of the method for operation I&C DCS test of the European pressurized reactor project, the conclusions play a guiding role on the operation I&C DCS test of the domestic advanced nuclear power plant. The study of the method focuses on the test platform, the test process and the optimization of method of operation I&C DCS test with the practical experience. The reasonable and reliable test mothod for operation I&C DCS test of the European pressurized reactor project is worthy of the reference and the development in the project of the domestic advanced nuclear power plant.