  The size distribution is determined directly from the current known Kuiper
Belt Objects (KBOs). We found that there is a peak for the size distribution
around 230 km in diameter. For the objects larger than 230 km, the KBOs
populate as $N(s) \propto s^{-4}$ as we see in Jewitt et al. (1998). For the
objects smaller than 230 km, we found $N(s) \propto s^{3}$. This result from
the current observational data is new and very different from the conventional
concept of the KBO size distribution. Though the true size distribution might
change from what we have after more KBOs be discovered, we argue that the
existence of a peak around 150 km to 250 km is likely.
