Abstract: An automated test method for Power Cycle functionof SATA solid state drive(SSD)is proposed to verify the data integrity and safety of the SATA SSD in the processof power-on and power-off, and ensure that the SATA SSD can maintain normal and efficient operating state in various application scenarios.By analyzing the standard SATA protocol and focusing on the power cycle workflow of SATA SSD, the automatic test of SATA SSD Power Cycle function is carried out by scripting on the hardware and software platforms of DriveMaster and Ulink Power Hub.The test method includes the test flow chart extracted based on the SATA standard protocol, the software platform Drive Master script programming and the linkage setting of the Drive Master platform and the ULink Power Hub hardware components, the running status record of the device under test, the running environment record when an abnormality occurs, the test result summary, etc. To meet the user demand for SATA SSD, the test process is based on the classic use case "write data-power off-power on-read back and comparison" to create a variety of different writing pressures for SATA SSD, simulating the real use of SATA SSD Scenarios to ensure the integrity and correctness of the data in the SATA SSD from the manufacturer's perspective.