The utility model provides a releasing water isolation oil extraction completion pipe string, and belongs to the technical field of oil field machinery. The releasing water isolation oil extraction completion pipe string is characterized in that the inner cavity of a casing pipe is connected with an oil pipe, an oil pumping rod, a pole type oil pump support seat, a tubing nipple, a pole type oil pump, a bridge plug release sub, a bridge plug press steel ball and a bridge plug capable of being refloated through an oil extraction wellhead, the oil pumping rod is connected with the pole type oil pump through a thread, the pole type oil pump is inserted into the pole type oil pump support seat, the lower portion of the oil pipe is connected with the pole type oil pump support seat through a thread, the lower portion of the pole type oil pump support seat is connected with the tubing nipple through a thread, the lower portion of the tubing nipple is connected with the bridge plug release sub, the bridge plug press steel ball is placed in the inner cavity of the bridge plug release sub through a thread, the bridge plug press steel ball is placed in the inner cavity of the bridge plug release sub, and the bridge plug release sub is fixed with the bridge plug capable of being refloated through pins. The releasing water isolation oil extraction completion pipe string achieves the purposes of completing seat sealing, releasing and oil extraction of the bridge plug through drilling once, simplifying construction procedures, shortening operation time and saving operation cost.