An escape chute, comprising: a) an upper straight chute; b) a lower straight chute; c) a turning chute, the turning chute comprising a front section, a middle section, and a rear section; and d) a rotating axle; e) a guard plate; wherein: the upper straight chute and the lower straight chute are connected via the turning chute; each chute comprises a chute base; the guard plate is to be arranged on a middle wall of a stair, and the chute bases of the upper straight chute and the lower straight chute are in hinge joint with the guard plate via the rotating axle; the front section, the middle section, the rear section of the turning chute are connected via corresponding chute bases thereof; and the chute base of the upper straight chute and the chute base of the lower straight chute are connected through the chute bases (20A, 21A, and 22A) of the front, the middle, and the rear sections (20, 21, and 22) of the turning chute; characterized in that the chute base of the front section of the turning chute comprises: a front part in a rectangular shape, and a rear part in a sector shape; a front end of the chute base of the front section is in lap joint with a rear end of the chute base of the upper straight chute and is disposed on a supporting plate arranged on the rear end of the chute base of the upper straight chute; a rear end of the chute base of the front section is in lap joint with an upper end of the chute base of the middle section and is disposed on a supporting plate of the chute base of the middle section; the chute base of the middle section comprises: an inner end being in hinge joint with the middle wall via the second rotating axle, and a rear end being in hinge joint with a front end of the chute base of the rear section; and a rear end of the chute base of the rear section is in butt joint with a front end of the chute base of the lower straight chute. a) an upper straight chute; b) a lower straight chute; c) a turning chute, the turning chute comprising a front section, a middle section, and a rear section; and d) a rotating axle; e) a guard plate; wherein: the upper straight chute and the lower straight chute are connected via the turning chute; each chute comprises a chute base; the guard plate is to be arranged on a middle wall of a stair, and the chute bases of the upper straight chute and the lower straight chute are in hinge joint with the guard plate via the rotating axle; the front section, the middle section, the rear section of the turning chute are connected via corresponding chute bases thereof; and the chute base of the upper straight chute and the chute base of the lower straight chute are connected through the chute bases (20A, 21A, and 22A) of the front, the middle, and the rear sections (20, 21, and 22) of the turning chute; characterized in that the chute base of the front section of the turning chute comprises: a front part in a rectangular shape, and a rear part in a sector shape; a front end of the chute base of the front section is in lap joint with a rear end of the chute base of the upper straight chute and is disposed on a supporting plate arranged on the rear end of the chute base of the upper straight chute; a rear end of the chute base of the front section is in lap joint with an upper end of the chute base of the middle section and is disposed on a supporting plate of the chute base of the middle section; the chute base of the middle section comprises: an inner end being in hinge joint with the middle wall via the second rotating axle, and a rear end being in hinge joint with a front end of the chute base of the rear section; and a rear end of the chute base of the rear section is in butt joint with a front end of the chute base of the lower straight chute. the upper straight chute and the lower straight chute are connected via the turning chute; each chute comprises a chute base; the guard plate is to be arranged on a middle wall of a stair, and the chute bases of the upper straight chute and the lower straight chute are in hinge joint with the guard plate via the rotating axle; the front section, the middle section, the rear section of the turning chute are connected via corresponding chute bases thereof; and the chute base of the upper straight chute and the chute base of the lower straight chute are connected through the chute bases (20A, 21A, and 22A) of the front, the middle, and the rear sections (20, 21, and 22) of the turning chute; the chute base of the front section of the turning chute comprises: a front part in a rectangular shape, and a rear part in a sector shape; a front end of the chute base of the front section is in lap joint with a rear end of the chute base of the upper straight chute and is disposed on a supporting plate arranged on the rear end of the chute base of the upper straight chute; a rear end of the chute base of the front section is in lap joint with an upper end of the chute base of the middle section and is disposed on a supporting plate of the chute base of the middle section; the chute base of the middle section comprises: an inner end being in hinge joint with the middle wall via the second rotating axle, and a rear end being in hinge joint with a front end of the chute base of the rear section; and a rear end of the chute base of the rear section is in butt joint with a front end of the chute base of the lower straight chute.