PURPOSE: An ink stick grinder is provided to grind an ink stick uniformly since the ink stick held by an ink stick holder is grinded by an ink stick grinding roller as being moved forward and backward. CONSTITUTION: The ink stick grinder grinds an ink stick by contacting the ink stick held by an ink stick holder to the upper surface of a grinding roller rotating by a motor. A guide roller(16) having a spiral guide groove(30) on the outer peripheral face is mounted to a rotary shaft(14) of the grinding roller(18). A guide bar(42) formed on an operating arm(28) connected to the ink stick holder(24) is inserted.
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