In view of influence of multi-control surfaces on static aeroelasticity of two-dimensional wing, the model used in this paper is based on two dimensional wing with leading- and trailing-edge control surfaces and the location of elastic axis at the back. Based on the CFD/CSD loose coupling static aeroelasticity numerical calculation method, the aerodynamic characteristics and torsional deformation of two-dimensional wing with different deflection modes of control surfaces are calculated and analyzed under condition of Ma=0.3. The results indicate that when leading- and trailing-edge control surface deflect clockwise, the aerodynamic characteristics is bad while torsional deformation characteristics is good, and peak of torsional angle(θmax)decreases about 43.32% ~ 62.92% compared with the basic wing. When leading-edge control surface deflects anticlockwise , the situation is contrary, the maximum of lift coefficient(Clmax) increases about 42.96% ~ 57.58% and stall angle of attack decreases about . The study can provide reference for the application of multi-control surfaces on active control of aeroelasticity of forward swept wing.