A ball carrier apparatus including: a main body defining a chamber in which balls or the like can be accommodated, the main body being formed with a window communicating the chamber with outer side, whereby the balls or the like can be placed into the chamber or taken out of the chamber; and a valve sleeve reciprocally movably fitted around the main body. In a blocking position, the valve sleeve shuts off the window of the main body. However, in the case that an external force is applied to the valve sleeve to move the valve sleeve away from the window, the valve sleeve unblocks the window, permitting the balls or the like to get into or get out of the chamber.