Quantum information processing contributes to solving computational problems and enhancing communication security. Recently quantum information processing has been applied to game theory. This project studies game theory problems and models using a quantum information approach. This project has two aims: (1) quantization of strategies. By quantizing game strategies, we have quantum strategies which can improve the game outcome. This project focuses on some game theory problems which have been studied in the quantum realm. This project also investigates new properties of some equilibria concepts in quantum games. The effect of quantum information processing in quantum games is also studied by analyzing several quantum game models. (2) the influence of quantum noise to quantum games. The variation of game solutions and strategies under noise is studied. This project studies how different types of quantum noise influence several kinds of quantum game models.