The invention discloses a flexible circuit board and a flexible circuit board connecting device. A flexible circuit board includes an FPC board, a reinforcement board is adhered to the upper surface of the interface end on the right side of the FPC board, and a front and rear panel is provided on the reinforcement board. A plurality of first through holes that are evenly distributed and run downward through the FPC board. The first through holes include a round hole and a through groove placed on both sides of the round hole to communicate with the two round holes. The connected cover frame and the placement frame, the FPC board is placed in the placement frame and is pressed tightly by the cover frame, there are gold fingers on the lower surface of the FPC board, a flexible circuit board connection device, including a body, which is composed of multiple terminals evenly distributed at the front and back , there is a buckle inside the terminal, the lower part of the buckle is a turntable, there is a third through hole on the terminal, the turntable is in the third through hole, and a push rod is included, the push rod passes through the third through holes of multiple terminals in turn, and the push rod It is connected with the turntable transmission in multiple terminals, and there are contact shrapnels on the terminals; the invention connects the FPC board and the body more tightly through the buckle connection, and will not slip off.