The invention discloses an automatic saw chain part putting device. The device comprises a rack and a tank chain conveying mechanism arranged on the rack; a chain shaft putting device, a transmission piece putting device, a blade putting device, and a connecting piece putting device are sequentially arranged in the conveying direction of the tank chain conveying mechanism, the chain shaft putting device puts a chain shaft on a tank chain, the transmission piece putting device puts a transmission piece on the tank chain and meanwhile is embedded with the chain shaft, the blade putting device puts a blade on the tank chain and is embedded with the chain shaft at the same time, and the connecting piece putting device puts a connecting piece on the tank chain and is simultaneously embedded with the chain shaft. Part putting can be automatically finished, labor intensity is reduced, and the part putting efficiency is improved.