Abstract: The present invention discloses a method for component-level non-iterative construction of an airborne real-time model of a variable-cycle engine, which is proposed by using an existing nonlinear component-level dynamic general model of a variable-cycle engine in combination with a modeling idea of an aero-engine LPV model. In the original nonlinear component-level general model of the variable-cycle engine, components are connected together through a system of nonlinear co-working equations, and characteristic parameters of the respective components are obtained by iteratively solving the system of nonlinear co-working equations. In such a process of iteratively solving the system of nonlinear equations, much time is taken to operate the model.