At present, distributed control system (DCS) plays important roles in power plant, but still has some problems. So the performance test for DCS is attracting more and more attention. This paper introduced the performance test technique for DCS in terms of application. Some test techniques and results were presented, such as analog signals real time test performance test, controllers processing period test, and channel anti-jammings function test. These test techniques have been successfully applied in ten units, which test results are especially useful for the on-site DCSs performance tests.