Abstract: Based on the study of anti-scram-strike charge of follow-fuel-assembly for research reactor, the test for anti-scram-strike lifespan of follow-fuel-assembly was done including the full size check before test, anti-scram-strike lifespan test and the full size check after test. The results show that the design and structure of follow-fuel-assembly in the control rod drive line is reasonable and reliable, and its lifespan meets design demand; during the lifespan, follow-fuel-assembly has no effect on the performance of control rod drive line, and its reliability is excellent.