The　aerodynamic　performance　of　the　quadrotor　is　usually　suffering　a　lower　propulsive　efficiency　in　a　windy　environment.　Especially　the　horizontal　wind　may　affect　the　attitude　control　to　provide　sufficient　thrust　to　lift　the　entire　vehicle　or　cause　extra　power　consumption.　In　this　paper,　the　aerodynamic　characteristics　of　a　micro　quadrotor　aircraft　considering　the　horizontal　wind　disturbance　are　studied　by　both　experiments　and　simulations.　First,　the　aerodynamic　model　of　the　quadrotor　with　the　influence　of　horizontal　wind　disturbance　is　deviated　in　details.　Then,　the　distribution　of　flow　field　of　the　quadrotorr　MAV　considering　the　effects　of　horizontal　wind　was　simulated　by　computational　fluid　dynamics　(CFD)　method.　Finally,　the　thrust　and　power　consumption　of　quadrotor　with　rotational　speed　ranged　from　1500　to　2300　r/min　were　obtained　in　a　low-speed　wind　tunnel.　The　comparison　of　simulation　and　experimental　results　shows　that　the　distribution　of　flow　field　becomes　more　complicated　with　mutual　interferences　resulted　by　the　distortion　of　rotor　wake　and　crash　of　the　downwash　flow　from　the　front　rotors　along　with　the　wind　direction.　The　thrust　of　the　rotors　gradually　increases　with　wind　speed,　resulting　from　the　increment　of　pressure　difference　between　the　upper　and　lower　surfaces.　However,　the　power　consumption　is　also　increasing　because　of　the　possible　vibration　caused　by　the　strong　interactions　when　the　wind　speed　is　up　to　4.0　m/s.　Also,　the　power　loading　of　the　quadrotor　is　larger　at　2.5　m/s,　which　shows　a　good　wind　resistance　with　a　better　aerodynamic　performance.　©　2013　IEEE.