Modern technologies of assembling radio electronic products based on aluminumpolyamide flexible switching structures (FSS) are a complex set of technological problems related to the development of new design technological principles for the design of technological processes (TP), ensuring their reliability, controllability [1][2][3][4]. The problem of providing the necessary levels of quality and technical excellence of manufactured electronic products aims at the use of effective methods of assembling elements of functional electronics on flexible boards-bases [5][6][7], at improving the methods of modeling TP assembly, which must provide high informativeness and reliability [8][9][10][11]. It is necessary to develop an effective mathematical support for modeling the functioning and evaluation of the reliability of TP assembly and installation of FSS-based electronic products. A simulation model of the technological process of assembling a type-forming electronic product on an aluminum-polyimide basis with the use of a mathematical apparatus, special instrumental and software tools (GPSS World) of the theory of mass service is presented, which made it possible to obtain a mathematical model of TP assembly of radio electronic products to determine the percentage of the output of suitable electronic products manufactured on the assembly process line