The invention discloses a tubular membrane element and an integral membrane bioreactor. The integral membrane bioreactor comprises a reaction tank and the membrane element positioned in the reaction tank, and the membrane element comprises an inner cavity and a non-watertight cylindrical supporting layer, wherein the outer surface of the supporting layer is coated with an organic filter membrane layer; the upper end of the inner cavity is closed; the lower end of the inner cavity is provided with a water outlet; and the inside of the reaction tank is also provided with a water-collecting tray which is connected with the water outlet of the membrane element. The tubular membrane member and the integral membrane bioreactor are not easy to be ruptured and blocked, and can effectively reduce the cost of the membrane element and the frequencies of chemical cleaning so as to prolong the service life of the membrane and reduce the running cost.