The utility model discloses a bidirectional open-close type curtain which comprises a fixed top seat, a coilrope control device, a curtain body and a pull-type base seat. The fixed top seat comprises a containing space, and at least two rope holes are formed in the bottom of the fixed top seat; the coilrope control device is arranged in the containing space of the fixed top seat, and at least a first penetrating rope and a second penetrating rope are wound on the coilrope control device in a penetrating mode, wherein the first penetrating rope and the second penetrating rope penetrate out of the rope holes formed in the bottom of the fixed top seat in an extended mode; the curtain body is arranged on the lower portion of the fixed top seat, and comprises a movable top end, a bottom end and a curtain, the first penetrating rope extends from top to bottom to penetrate through the movable top end, the curtain and the bottom end, and when the first penetrating rope penetrates out of the bottom end downwards and an extension end is formed on the first penetrating rope; and the pull-type base seat is arranged on the lower portion of the curtain body bottom end, and is only mutually combined, connected and fixed with the extension end of the first penetrating rope, and a user is enabled to be capable of pushing and pulling the movable top end or the pull-type base seat by hands to change the take-up state and the pay-off state of the curtain. Thus, the purposes that the movable top end is prevented from being moved to cause clearances between the movable top end and the fixed top seat, and the bidirectional open-close type curtain is more convenient and practical to use are achieved.