The invention discloses a wind tunnel experiment system used for a vector-boosting airplane model. A first vector propulsion spray pipe and a second vector propulsion spray pipe are arranged in the machine body of the vector-boosting airplane model; the wind tunnel experiment system comprises a support pillar, a supporting rod used for supporting the vector-boosting airplane model, a compressed air source arranged outside the wind tunnel, as well as a first pipeline and a second pipeline; the first pipeline and the second pipeline are used for connecting the compressed air source with the first vector propulsion spray pipe and the second vector propulsion spray pipe. The wind tunnel experiment system has the advantages that high-pressure air in the compressed air source is released to the vector propulsion spray pipes through pipelines, so as to obtain air blast power, simulate the air blast state of a vector propulsion engine, and overcome the defect that in the prior art, the aerodynamics state of the vector propulsion airplane model cannot be simulated in a wind tunnel.