A numerical simulation based on computational fluid dynamics/ computational structural dynamics (CFD/CSD) loose coupling static aero elastic numerical calculation method is presented for elastic forwardswept wing (FSW) with control surfaces for its aeroelastic characteristics. The calculation and analysis on aeroelastic characteristics of the elastic FSW with control surfaces are performed under conditions of different angle of attack, dynamic pressure and mach numbers. The calculation result shows that the control surface deflection has great influence on FSW static aeroelastic characteristics; the aerodynamic and elastic deformation characteristics of elastic FSW rank first when leading and trailingedge control surfaces deflect in same direction with different angles of attack, and the liftdrag characteristics of elastic FSW is fairly good when α=4°. The aerodynamic and elastic deformation characteristics of elastic FSW are quite good when leading and trailingedge control surfaces deflect in different direction with different dynamic pressure, and the maximum liftdrag ratio is ahead of about 7%; The lift coefficient of all elastic models is the best when Ma=0.7. The study provides reference for real use of FSW only.