Abstract: The objective of this application is to provide a switch device of a turnstile passage, consisting of a flap, a base, a frame, a guide rail mechanism arranged on the base and movably connected to the flap, a connecting rod swing mechanism 5 arranged on the frame 3, and a driving mechanism 6. One end of the connecting rod swing mechanism is rotationally connected to the flap so that the flap on the guide rail mechanism reciprocates between a closed position and an open position of the turnstile passage when the connecting rod swing mechanism swings; and the other end of the rod connecting rod swing mechanism is rotationally connected to the driving mechanism for driving the connecting rod swing mechanism to swing.