The invention belongs to the electronic technology field, and in particular relates to a method for evaluating a FPGA (Field Programmable Gata Array) interconnection structure based on the quantization of a model. With the adoption of the method, the key factors capable of influencing the FPGA interconnection structure are quantitatively modeled, and an evaluation index based on average jumping number statistics is proposed on the basis of the model. Through the method, a large-scale FPGA interconnection structure space can be transversely searched within the short time, which is ensured to be basically consistent with the evaluation result obtained by the complete CAD process within the large scope.