Abstract: This report briefly presents the philosophy of the parametric identification method of flight load.Based on correlativity between the flight load and flight parameters,an empirical re- lationship between load and parameters,by means of special flight measurementhas been estab- lished by regression analysis.Flight measuring parametric data are converted into load on the structural components of aircraft with the relationship.The examples of adopting this method to identify the load on tail of F-7 and the derivatives of hinge moment of control surface of F-6 are presented,and some relevant evaluation to them is also given. The study results show the feasibility,reliability and its practical values.

Key words: parameter identification, aerodynamic loads, aircraft structures, flight tests