  We study on the electroweak baryogenesis problem in the vector-like quark
model. This model can add to the minimal standard model the extra CP-violation
source which breaks CP spontaneously. Using charge transport mechanism
suggested by Nelson et al, we can get the net hypercharge flux : $f_{Y} \sim
10^{-5}$. This result could nicely explain the present baryon to entropy ratio
: $\rho_{B}/s \sim 10^{-9}$.
