  It is shown that spin polarization with respect to each flavor in
three-flavor quark matter occurs instead of the color-flavor locking at high
baryon density by using the Nambu-Jona-Lasinio model with four-point
tensor-type interaction. Also, it is indicated that the order of phase
transition between the color-flavor locked phase and the spin polarized phase
is the first order by means of the second order perturbation theory.
