As the Chinese government is committed to reducing peak carbon dioxide emissions by 2030 and achieving carbon neutral by 2060, it is crucial to get this target by reducing energy consumption in super-high buildings. The running time of mechanical ventilation systems could be cut down by utilizing natural ventilation through windows in specific periods. In order to improve the performance of natural ventilation effectively, the study on the characteristics of window forms in super tall buildings is put forward. In this paper, the effects of different window types on natural ventilation in super high-rise buildings were investigated. Field investigation and field tests were carried out in this research. The results show that the narrow and long windows can provide a better ventilation effect. This study provides some suggestions for architects to select the window opening form in super high-rise buildings.