The invention discloses a rapid construction and support method for a software system structure to describe language. The invention is characterized in that the method includes the following steps: (1) a scalable system structure language foundation FEAL is constructed; the FEAL appoints a set of descriptive abstract element definition, a group of element structure standard and a set of mapping mechanism standard, and provides a sublayer structure foundation for constructing various meaning signifying symbols of a new ADL, and the meaning signifying symbols for describing language ADL using the software system structure is mapped to FEAL inner element; (2) a plug-in developing platform XArch with the functions of model display, visual editing, attribute display, multi-view support, ADL automatic generation and model structure show is constructed, wherein, the plug-in developing platform XArch is based on the software system structure of the FEAL, and the functions are the universal functions in the software system structure. The invention realizes a parser for formalizing grammars for various ADL or system structure models, makes the work on defining the ADL more convenient and fast, and greatly facilitates the research and analysis of the software system structure. The invention is conducive to the popularization of the software system structure in practical engineering.