Bicycle mount device

The invention, wraps tightly clamp the handlebar of the bicycle relates to a mounting device for a bicycle; Is connected to the lower end of the clamp, the additional receiving portion having a fastening hole, which can be equipped with an additional device; The connecting portion is rotatable in the right and left direction is coupled to one side of the clamp; Connected to one side of the connecting portion and the other fastening member and the slide, the slide having a locking part capable fastening groove; It includes. This makes it possible to mount the mounted for possible rotation in the left and right directions in the state of being mounted to the portable communication device on a bicycle-mounted apparatus and the bicycle device while two accessories, to overcome the limited mounting position limitations of the handlebar have.