Posterior interosseus artery flap is commonly used as a pedicle flap to cover soft tissue defect in the dorsum of the hand. It is not able to cover a soft tissue defect beyond the level of proximal phalang unless it is used as a free flap. We illustrate 2 cases in which large soft tissue defect in the finger was able to close by using a contralateral posterior interosseous flap. This technique is a reliable alternative method for closing large soft tissue defect in the fingers.