The invention provides a chain plate transmission and polishing all-in-one machine. The chain plate transmission and polishing all-in-one machine is characterized by comprising feeding mechanisms, a transmission mechanism and polishing mechanisms which are sequentially arranged; the first feeding mechanism comprises a workbench and a pushing plate; the pushing plate is arranged above the workbenchand is used for pushing a to-be-polished chain plate; the transmission mechanism is used for transporting a to-be-polished mechanism to a polishing station; the polishing mechanisms are symmetricallyarranged on two sides of the feeding mechanisms; a plurality of elastic pressing mechanisms arranged in parallel are arranged above the polishing position; the elastic pressing mechanisms are used for fixing the to-be-polished chain plate; the second feeding mechanism comprises a second pushing plate and a frame body; and the second pushing plate is used for pushing the polished chain plate intothe frame body. The chain plate transmission and polishing all-in-one machine has the advantages of being reasonable in structure, capable of achieving the operation of an assembly line of the chain plate polishing and high in polishing efficiency.