[en] The space charge effect in the presence of sextupole resonance was studied using the lattice of the SSC low energy booster. We performed the multiparticle tracking with a self-consistent charge distribution. When there are synchrotron oscillations, a slight emittance growth is observed, which differs from the result of non-self-consistent tracking. However, this growth cannot be caused by repeated crossing of resonances due to sextupole field in dipoles. The tracking result has shown that the emittance dilution of the whole beam should be considered instead of amplitude growth of some particular particles. 9 refs., 4 figs., 3 tabs