Abstract: To investigate the wind load characteristics of complex-shaped super-tall buildings, Hangzhou R&F Center project was taken as a case study. Based on the Realizable k-ε turbulence model, the Computational Fluid Dynamics (CFD) method was employed to numerically simulate the surface wind pressures on the super-tall building under both isolated and grouped building conditions. The mean wind pressures and overall shape coefficients under different wind directions were analyzed, and the differences in wind loads between the isolated and grouped conditions were compared. The results indicate that: building sheltering increases the minimum mean negative wind pressure by up to 28%, but has little effect on the maximum mean positive wind pressure; the minimum mean negative wind pressure decreases by approximately 20% significantly before the building step-back section, while the maximum mean positive wind pressure increases linearly with building height initially and then decreases near the top; within the building group, the minimum negative wind pressure on the main tower is greater than that under the isolated condition, reflecting sheltering effects among buildings; the overall shape coefficient of the super-tall building exceeds the code-specified value at the bottom and top sections but is lower in the middle section; aerodynamic interference effects between buildings may lead to an increase in the overall shape coefficient at the bottom and a decrease at the top.It is recommended that for the wind-resistant design of super high-rise buildings, the overall shape coefficient should be taken as 1.6 for the bottom and top sections, and 1.4 for the middle section.