The invention discloses a foldable orthopedic Kirschner wire positioning guider which comprises an operation table, a lifting unit, a steering unit and a guiding unit. The lifting unit comprises a lower shell, an upper shell, a battery, a circuit board, a motor, a speed reducer, a screw and a lifting nut, wherein the battery is arranged in the lower shell, and the screw and the lifting nut are matched with each other in a screw joint manner. At least one guide rail is vertically arranged on the upper shell, the circuit board is connected with a controller through signals, the steering unit comprises a cylinder, a lower gasket, a ball, an upper gasket, a locking block, a cover plate and a locking knob component are sequentially arranged in the cylinder from bottom to top, a first fixing armis arranged on the cylinder, a guide ring is arranged at the end of the first fixing arm, a second fixing arm is arranged at the lower end of the ball, a sleeve is arranged at the lower end of the second fixing arm, the guide unit comprises a guide target sleeve, a sliding arm and a guide sleeve, the sliding arm and the guide target sleeve are integrated, and the sliding sleeve can be movably arranged in the sleeve in a penetrating manner. The foldable orthopedic Kirschner wire positioning guider is adaptable to needle insertion fixing in all directions, and deviation of a kirschner wire pricking into a human body is prevented.