  We study the short distance part of the intrinsic three-nucleon interaction
in a constituent quark model with color-spin interaction. For that purpose we
first calculate the transformation coefficient between the tribaryon
configuration and their corresponding three baryon basis. Using a formula for
the intrinsic three-body interaction in terms of a tribaryon configuration, we
find that after subtracting the corresponding two-baryon contributions, the
intrinsic three-body interaction vanishes in flavor SU(3) symmetric limit for
all quantum numbers for the three nucleon states. We further find that the
intrinsic three-body interaction also vanishes for flavor-spin type of quark
interaction.
