  The quasinormal modes (QNMs) and the late-time behavior of arbitrary spin
fields are studied in the background of a Schwarzschild black hole with a
global monopole (SBHGM). It has been shown that the real part of the QNMs for a
SBHGM decreases as the symmetry breaking scale parameter $H$ increases but
imaginary part increases instead. For large overtone number $n$, these QNMs
become evenly spaced and the spacing for the imaginary part equals to
$-i(1-H)^{3/2}/(4M)$ which is dependent of $H$ but independent of the quantum
number $l$. It is surprisingly found that the late-time behavior is dominated
by an inverse power-law tail $t^{-2[1+\sqrt{(s+1/2)^{2}+ (l-s)(l+s+1)/(1-H)}]}$
for each $l$, and as $H\to0$ it reduces to the Schwarzschild case $t^{-(2l+3)}$
which is independent of the spin number $s$.
