Based on the wind tunnel test of the second largest-scale airport terminal in China (where the maximum space among the corridors is almost larger than 1,500m), this study investigates the aerodynamic interference effects of surrounding buildings on the wind pressure distribution characteristics of the complex large-scale roof with multiple corridors. Also, the non-Gaussian characteristics of wind pressures on the super large-scale roof structure is investigated by High-order Statistical Moment Method and Kolmogorov-Smirnov Method （K-S method）. The results show that the effect of surrounding buildings on the wind pressure distribution characteristics is generally small, which is featured with slight decrease in the minimum negative pressure. Furthermore, the wind pressure on this roof is generally negative, in particular, the extreme values of negative pressures are observed on the leeward edge and roof corners due to the strong flow separation and vortices. In addition, the non-Gaussian regions distinguished by High-order Statistics Method are inconsistent in the same region, and the results are insensitive to the approaching wind directions. Meanwhile, the results of K-S method are quite consistent and are in good correspondence with the wind pressure distributions. Moreover, the large-scale roof with multiple corridors shows obviously distinguished non-Gaussian characteristics at the windward eave, corners and leeward areas. Therefore, it is of worth to consider the non-Gaussian characteristics in the wind load code of large-scale roof structures, and improve the peak factor estimate method and increase the peak factor in the non-Gaussian regions.