The invention relates to a conveying chain for transmission equipment. The conveying chain is mainly formed by connecting a plurality of chain links in sequence, wherein each chain link comprises an inner chain sheet, and the two ends of the inner chain sheet are respectively clamped with a roller; a sleeve penetrates into a central inner hole of each roller, the two ends of the sleeve are fixed in two inner chain sheets, and an inner chain link unit is formed; the side edges of the two ends of the two inner chain sheets of each inner chain link unit are connected with outer chain sheets in a staggering manner; after a pin shaft penetrates into central shaft holes of the sleeves at the two ends of each inner chain sheet and the two ends of the pin shaft respectively penetrate through each inner chain sheet and each outer chain sheet, each outer chain sheet is fixed on each inner chain link unit; after the adjacent inner chain link units are connected in sequence through the outer chain sheets, the long-strip conveying chain is formed. At least one inner chain link unit is arranged on the conveying chain, in the inner chain link units on the two end sides of the inner chain link unit, two inner chain sheets are upwardly connected with an integral vertical plate, the end surfaces of two vertical plates are connected with a transverse plane plate, and the two ends of the plane plate are respectively riveted with an L-shaped support in connecting holes through rivets.