The present invention relates to a date displaying cap for a medicine bottle, which is used by being screwed and combined with an inlet (B1) of a bottle body (B). The date displaying cap for a medicine bottle comprises: an outer cap (10) which rotates clockwise or counter clockwise by a user and has a display window (11) formed in the side part thereof an inner cap (20) where a screw unit is formed in the inner circumference in order to be screwed and combined with the inlet (B1) of the bottle body (B) a date displaying cap (30) which is installed in between the outer cap (10) and the inner cap (20) and has a date display unit (31) exposed on the display window (11) in the outer circumference in order to display multiple dates a first holding unit (40) which is formed on the outer circumference of the inner cap (20) a second holding unit (50) which is formed in the inner circumference of the outer cap (10) and provides a space for hanging the first holding unit (40) in order to restrictively move multiple first ratchet ends (60) which are formed in the inner side of the outer cap (10) and where an inclined plane is formed unilaterally multiple second ratchet ends (70) which are formed in the inner side of the date displaying cap (30) and where an inclined plane is formed in the same direction as the first ratchet end (60) multiple third ratchet ends (80) which are formed in the inner circumference of the date displaying cap (30) and where an inclined plane is formed in the opposite direction to the second ratchet end (70) and multiple fourth ratchet ends (90) which are formed in the outer circumference of the inner cap (20) and where an inclined plane is formed in the same direction as the third ratchet end (80).COPYRIGHT KIPO 2014본 발명은 병몸체(B)의 입구(B1)에 나사결합되어 사용되는 약병용 날짜표시 뚜껑에 관한 것으로서, 사용자에 의하여 시계 또는 반시계 방향으로 회전하는 것으로서, 측부에 형성된 표시창(11)을 가지는 외측캡(10)과 내주면에 상기 병몸체(B)의 입구(B1)에 나사결합하는 나사부(20a)가 형성된 내측캡(20)과 외측캡(10)과 내측캡(20) 사이에 설치되는 것으로서, 외주면에 상기 표시창(11)으로 노출되는 다수의 날짜가 표
