Nature ventilation and enhanced indoor ventilation first been interpreted. Then we introduce the main structure of enhanced indoor ventilation, including solar energy enhanced indoor ventilation(Trombe wall, solar chimney, solar wall, solar ventilated roof and solar storage ventilation), multivariate ventilation and enhanced indoor ventilation with optimized design, and the main research progress of experts and scholars at home and abroad is described. At last some shortcomings and future research directions of enhanced indoor ventilation in research are pointed out.