In 2004, Kim was drafted into the Korea Armed Forces Athletic Corps. In the Korea Armed Forces Athletic Corps, Kim was the home run leader.[1] In 2007, Kim was discharged from military service and returned to the LG Twins. However, he still played an active part in the farm team.
In June 2016, Kim was banned from returning as a player for a minimum of a year without KT Wiz's approval, after he was booked without detention for allegedly masturbating in public while looking at a female college student on June 16, 2016.[7] Kim has not played in the KBO since.