Aiming at the corridor space design of multi-storey education buildings for primary and secondary school,the quantitative analysis support for improving the building's natural ventilation,the indoor wind environment simulation was conducted by controlling different corridor widths,corridor window areas,window positions,and different combinations of corridors and plane spaces,with"ventilation rate of rooms on standard floor"as the evaluation index to analyze the influence of corridor space change and building natural ventilation performance.The conclusions are as follows:(1)The larger the ratio of window area in corridor is,the better the ventilation is,but the increase is not linear;(2)The corridor is located in the north of the plane space,which is more conducive to the natural ventilation of the building than the south of the plane space;(3)The window area of the classroom wall adjacent to the control corridor shall not be too small,otherwise the ventilation effect will not be improved;(4)The influence of corridor width change on building natural ventilation also presents a non-linear relationship.