A blind apparatus including head box, a bracket for mounting the blind apparatus on a window, a plurality of vertically spaced parallel slats supported by ladder cords connected to a rotary drum located in a head box, a tilter device for tilting the slats and including a tilter input shaft, a tilter for transmitting the rotation of the tilter input shaft to the rotary drum, and a hollow rotating operation rod coupled to the tilter input shaft, slat lifting cords, a stopper device disposed in the head box for restraining the lifting cords from moving, and a stopper releasing cord connected at its one end to the stopper and extended through the interior of the rotating operation rod and the grip at a free end of the operation rod.