  We discuss results of 2D simulations of magnetorotational(MR) mechanism of
core collapse supernova explosions. Due to the nonuniform collapse the
collapsed core rotates differentially. In the presence of initial poloidal
magnetic field its toroidal component appears and grows with time. Increased
magnetic pressure leads to foramtion of compression wave which moves outwards.
It transforms into the fast MHD shock wave (supernova shock wave). The shape of
the MR supernova explosion qualitatively depends on the configuration of the
initial magnetic field. For the dipole-like initial magnetic field the
supernova explosion develops mainly along rotational axis forming mildly
collimated jet. Quadrupole-like initial magnetic field leads to the explosion
developing mainly along equatorial plane. Magnetorotational instability was
found in our simulations. The supernova explosion energy is growing with
increase of the initial core mass and rotational energy of the core, and
corresponds to the observational data.
