The invention discloses a compound identification method of an unmanned helicopter flight dynamical model and belongs to the field of unmanned helicopter dynamical modeling, and the method is characterized in that an unmanned helicopter, a flight control computer, a sensor group, an airborne data broadcasting station, a ground data broadcasting station, a ground station, a remote controlled transmitter and a remote controlled receiver are utilized, wherein a remote controlled command of a ground pilot is in charge of stimulating the unmanned helicopter; an automatic control command of the flight control computer is used for maintaining the unmanned helicopter at the predetermined flight speed, and ensuring the flight safety; and the remote controlled command and the automatic control command are combined by the flight control computer to obtain a steering engine command, so as to manipulate the unmanned helicopter to finish an identification test. In the compound identification methodprovided by the invention, the remote controlled command of the ground pilot and the automatic control command of the flight control computer are simultaneously introduced, so as to ensure the remotecontrolled command and the automatic control command to be mutually matched, thus the flight dynamical model of the unmanned helicopter can be accurately and safely identified.