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In this paper ,for the reason of the verification cycle is long, the verification timing is delayed, and the verification environment is limited, we conduct a testability verification work based on digital twins technology, focus on the development of testability verification technology framework and key technologies based on digital twins, included the technology of the failure mode and effect analysis based on digital twins、the technology of simulation of failure mode space based on digital twins、the technology of failure mode sample allocation and injection based on digital twins、the technology of data fusion technology based on digital twins , aim to achieve testability verification and growth of equipment life cycle. Finally , a set of test verification process based on digital twins driver is formed, which can be used to guide the test verification of new research products.