To provide an automatic supply device for reinforcing bars capable of eliminating entanglement of the reinforcing bars to be carried one by one for arranging a specified number of reinforcing bars on a conveyor.

This automatic supply device for reinforcing bars to supply them to a working machine or the like is provided with a stock base 20 where plural reinforcement bars P unbound are placed, and a means 20 to eliminate entanglement of reinforcing bars by lifting the reinforcing bars placed on the stock base, and dropping the lifted reinforcing bars onto the stock base while rotating the bars on an inclined surface 22a.