The utility model discloses a flexible connection structure of a flexible printed circuit board. The flexible connection structure comprises the flexible printed circuit board and a stiffening plate, wherein a golden finger used for the insertion of a connector clip is arranged at one end of the flexible printed circuit board, the stiffening plate is adhered at one end of the flexible printed circuit board, where the golden finger is arranged, and the stiffening plate comprises a handheld part and a hot-pressing part, the hot-pressing part is adhered on the golden finger, and the handheld part is arranged on the flexible printed circuit board. Due to the adoption of the structure, the handheld part is arranged on the stiffening plate and can not warp upwards, so that the handheld part does not occupy the space above the flexible printed circuit board, and further the thickness of an electronic product can be reduced; and simultaneously, the handheld part adopts a non-hot-pressing material and can be applied with force directly, so that the flexible printed circuit board can be conveniently inserted into and pulled out of an insertion slot of the connector clip through the golden finger, and the assembly is extremely convenient.