The present invention relates to a pro-environmental bicycle parking tower which shortens the time required for the entering and exiting of a bicycle. According to one embodiment of the present invention, the pro-environmental bicycle parking tower equipped with the plurality of elevating units comprises: a tower which forms a parking space where bicycles are kept; a transfer device including the plural elevating units which is equipped to be elevated or rotated independently inside the parking space of the tower so as to transfer bicycles carried in the tower to the parking space inside the tower or carry out the bicycles which are located at the parking space; and a parking stand which is equipped at the parking space inside the tower so that the bicycles that are carried in from the transfer device are kept or the kept bicycles are carried out to the transfer device. A plurality of parking stands are arranged in multi layers when the elevating unit rotates at the fixed angle according to the rotation of the shaft.