The invention discloses a frame connecting piece of a frame formwork and an inserting piece component.The frame connecting piece comprises a pin and an inserting piece.The pin is used for being inserted into a spliced frame of adjacent frame formworks, and an inserting hole is formed in the pin.The inserting piece is inserted into the inserting hole and is provided with a first abutting face completely abutting against the spliced frame and a second abutting face completely abutting against the inserting hole, and the first abutting face is opposite to the second abutting face.The inserting piece inserted into the pin is arranged to be provided with the first abutting face and the second abutting face opposite to the first abutting face, the first abutting face of the inserting piece completely abuts against the adjacent spliced frame, the second abutting face of the inserting piece completely abuts against the interior of the inserting hole in the pin, therefore, the inserting piece is closely combined with the spliced frame and the inserting hole, no clearance exists among the inserting piece, the spliced frame and the inserting hole, and the situation that the inserting piece is loosened and falls off during later use is avoided.The spliced frame of the adjacent frame formworks is firmly locked, and splicing connection of the frame formworks is completed.