Abstract: The special motor driver of the control rod drive mechanism is an important driving and control equipment with high reliability index. After analyzing the failure mechanism, according to the Arrhenius model, a single stress level accelerated life test scheme is proposed, and the evaluation method is given combining with the early evaluation scheme. The reliability qualification test of a special motor driver of the control rod drive mechanism was carried out, and the reliability of the test data was evaluated. The evaluation results far exceed the requirements of the index. The test scheme and evaluation method can be used to guide general nuclear power products.