Abstract: Heliostats is a typical structure affected by wind loads In this paper,a new approach to generate turbulence called Discretizing and Synthesizing Random Flow Generation（DSRFG） is used to simulation the turbulent boundary conditions,the techniques of Computational Fluid Dynamics（CFD）,such as Reynolds Averaged Navier–Stokes Equations（RANS）Model,Large Eddy Simulation（LES）and Detached eddy simulation（DES）,were adopted in this study to predict wind loads on and wind flows around the heliostats. The computed results were compared with extensive experimental data which were obtained at wind tunnels,the wind loads distribution of heliostats for wind direction 0° are predicted,the velocity and vorticity distribution around the heliostats were analyzed with 5 kinds of techniques. The results indicatesd that the RANS model can`t give satisfactory predictions for the tribulent flow or vortex in the wind field. The LES and DES model can yield encouraging results in the predictions of the separation and diffusion of vortices,while LES and DES with simular result to the data of wind tunnel test. It was found through the comparison that the vortex simulation result around the heliostats of DES is closer to the wind tunnel test value than that of LES,and DES has the advantage of providing rapid solutions.