SCM emphasizes the total optimum problems under the "win win" model, but the correct evaluation and selection for suppliers are very important.

Taking two-element equalizer as a link model, taking nonlinear least square method as optimum mode, selection problem of initial parameters in multiple node equalizer links is solved.

Then, based on the certain weighting of each factor and the AHP method, the optimum selection model of the multiobjective path was built.