  So far the interaction of ultacold atoms can only be tuned within one
particular scattering channel near a resonance, where the spinor structure of
atomic isotopes is destroyed due to the typically large magnetic field. In this
Letter, we propose a scheme to realize {\it multiple-channel scattering
resonance} (MCSR) of ultracold bosons in one-dimension while still keeping
their spinor structure. The MCSR refers to a simultaneous scattering resonance
among all different scattering channels, including those breaking SU(2) and
SO(2) spin rotation symmetries. Essential ingredients for MCSR include the 3D
interactions, the confinement potential and a spin-flipping field. Near MCSR a
many-body spinor system exhibits exotic spin density distributions and pair
correlations, which are significantly different from those near a
single-channel resonance.
