Abstract: The temperature effect of large-scale concrete wind tunnel system is so obvious that the design of the bearing and shear wall is very difficult． It was analysed the unequal“C”-shaped complex wind tunnel structure and the layout of the bearings under the load of the temperature with finite element method． According to the bearings’ three different forms of connections，it was compared three different support programs． Through comparison of the fixed-side shear walls and the bearings’shear，as well as comparison of key part of the structure’s displacement to determine the optimal program． Analysis of the wind tunnel shell plate elements’thermal stress distribution of the temperature load was carried out，when the structural arrangement was done in the use of the best programs．