To provide a structure of a suction cup, allowing easy attachment/detachment of the suction cup by applying slight force from a specific direction, and allowing production at low cost by integral molding of the same material, and to easily connect it to a use implement to allow use.

In this structure of the suction cup, a detachment wing 2 is extended from a detachment part 1 of a suction cup body to height of a suction cup connection base part 5, and the suction cup is provided with a detachment wing base part 3 for connecting the suction cup to the implement. Thereby, strong adhesion force is kept to force applied from an A direction, pulling force is applied to the detachment wing base part 3 connected to the implement when force is applied from a B direction, the detachment part 1 is lifted up through the detachment wing 2, and air flows into a suction part 6 to bring about effect of release of suction force by the slight force. Force is escaped by a buffering gap 4 such that the force lifting the detachment part does not act by deformation of the whole suction cup face in time of suction, and the detachment wing base part 3 is set to be lower than the suction cup connection base part 5 by several mm to bring about plays in the detachment wing 2 and the detachment wing base part 3. Thereby, the suction force is not checked.