A guiding device for fishing rod lines, the guiding device includes a supporting body for at least one guiding roller which is mounted so that the at least one guiding roller can rotate with respect to the supporting body about an axis of the roller. The guiding device further includes two elements for fixing to the shaft of a fishing rod, which are arranged substantially at right angles to the axis of the roller on opposite sides with respect to the supporting body. The guiding device further includes a kinematic connection device between the supporting body and at least one of the two elements for fixing, which is adapted to allow two degrees of freedom between the supporting body and at least one of the elements for fixing.