Abstract: The tape end detecting device comprises a check plate disposed for frictional, rotatable engagement with a boss of one of reel bases in a tape player, a guide hole formed in the check plate and including a set region and a reset region defined by a projection extending into the guide hole, a check pin formed on a detection plate and slidably engaging the guide hole, a cam follower linked to the detection plate, first cam formed on a rotation plate for concurrent rotation with a motor power to move the cam follower along its cam surface so as to reciprocate the check pin from the set region to the reset region of the guide hole, and second cam portion formed on the rotation plate radially outward of the first cam to move the cam follower along its cam surface while the check pin engages the projection of the guide hole.