Disclosed is an aircraft system analysis system and method. The aircraft system analysis system comprises a model import module, a parameter mapping module, a system coupling loop identifying module, a loop operation module and a system output module. The model import module imports domain models having the coupling relation into the aircraft system to be marked with domain A and domain B, arrays A.out [am] and B.out [bm] are valuated with response parameters of the domain A and the domain B, arrays A.in [an] and B.in [bn] are valuated with self-variable parameters, and the arrays are stored as XML formatted files. The parameter mapping module maps the parameters between the domain A and the domain B to form coupling files. The system coupling loop identifying module identifies the coupling files to form a coupling loop G0. The loop operation module processes the G0 to obtain a process G1 and operates the G1 until the G0 is balanced, the values of nodes of the balanced forward arrays are stored into AtoB [m], and the values of nodes of the reverse arrays are stored into BtoA [n]. The system output module extracts the values of the AtoB [m] and the BtoA [n], and the values are stored as the XML files of the forward nodes and the reverse nodes and outputted.