  The late-time tail behaviors of massive scalar fields are examined
analytically in the background of a black hole with a global monopole. It is
found that the presence of a solid deficit angle in the background metric makes
the massive scalar fields decay faster in the intermediate times. However, the
asymptotically late-time tail is not affected and it has the same decay rate of
$t^{-5/6}$ as in the Schwarzschild and nearly extreme Reissner-Nordstr\"{o}m
backgrounds.
