Over
the past three decades, the results of the county-level elections in
western Taiwan, showing "South Green/North Blue" voting
phenomenon. The so-called "South Green North Blue" implicateons
of two aspects, one is the pan-green camp with higher support in south
than north from the late 1980's; the other one is the vot-ing rate of the
pan-green camp in south growing much faster than north, the difference of pan-green
voting is widen after 2000. By using three data sets of different years
from Taiwan Social Change Survey (TSCS), this study shows that the ethnic
voting and the heavier Minnan Taiwanese bring the south Taiwan into green
camp, and the class voting expand the difference between south and north.