Flow fields of 2-D vectoring nozzle at different jet angles are calculated by the finite volume method based on 2-D Reynolds average N-S equation and RNG κ-ε turbulent model. The results show that the effective throat area of the nozzle is reduced as the jet angle is closed to 0°. Compared with the case without jet, the relative throat area ratio of the nozzle can achieve 78.15％ in the case of the jet location 29.5, width 1 mm, angle 0° and RSP=1.0. If RSP is kept unchanged, the coefficient of the total pressure recovery, thrust coefficient of the nozzle and the jet mass flow will approximately keep in a same level at different jet angles. The throat area of the nozzle can be effectively controlled by changing the jet angle.