[en] The program for optimization of the transportation channel parameters for beams with big spatial charge is presented. This program is the development of existing program for calculation of charged particles beam dynamics in transportation lines. Optimization is based on minimization of a functional at any point of transportation line using two gradient methods and a simplex-method. The numerical simulation of ions H^- transportation in the channel of axial injection of the cyclotron VINCY is fulfilled. The comparison of two variants of the calculation based on the presented program and particle-in-cell method shows a good agreement of one with another. (author)