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USBKey has hardware security encryption function and is widely used in important places such as software copyright , online banking payment and Intelligent home system Therefore, the hardware security capability is an important evaluation index. The USBKey Equipment Security Evaluation System Based on Real-time Acquisition of FPGA is designed for evaluating the security capability, which also partly coversStheSshortages of currently existing methods. The system uses USBHUB to connect the PC and the USBKey and the FPGA to collect and analyze USB data packets, which can not only accurately capture the power waveforms that generated by the USBKey while running algorithms and also exactly matches the time interval between the time of turning on the attack equipment and the power -measurementSequipments and the time of starting to run algorithms. Thus the system can evaluate the security capability of the USBKey efficiently. The system was verified in the laboratory, and the result show that the effect is good and the success rate is high.