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Duo to the merits of security and large memory capacity it is an inexorable trend that the financial IC card takes the palace of magnetic stripe card. For the complicated circuits testability design must be considered during the design of financial IC card. In this paper it introduces the testability design for a financial IC card,it presents the testability design of embed memory,OSC and analog front end circuits,after analyzing relative theory it proposes the test structure and design the circuits. Finally,it measures the chip of financial IC card with the equipment of V777,the test results shows the testability design is suitable for this IC card. 