The simulation quasistatic deformation of simple shift f.c.c. crystal on sliding system is carried out. The accounts were carried out on the basis of a method of molecular dynamics with use of Lennard-Jones potential. The curve of deformation is designed, the critical meanings of a corner of shift and tension of shift are determined. Is established that at achievement of a critical corner of shift there is an occurrence of defect of packing closepacked planes (111). At the further deformation of sliding the correct alternation of closepacked planes (111), characteristic for f.c.c. lattice is restored.