The utility model discloses a windproof and fireproof facility of a straight rail oblique moving type rail overturning device on a logistics rail. wherein the rail breaking mechanism is arranged between a straight-end fixed rail and an inclined-end fixed rail on the front side and the rear side of a fireproof window opening, a smoke-proof and fireproof casement window is arranged on the rear sideof the fireproof window opening, the rear portion of a movable rail of the rail breaking mechanism is installed on the inclined-end fixed rail through a left-right symmetrical swing sliding mechanism,and the front portion of the movable rail is installed on a left-right symmetrical sliding guide mechanism. A channel for driving the movable rail to be connected with the straight end fixed rail andthe inclined end fixed rail forwards and downwards and disconnecting the straight end fixed rail and the inclined end fixed rail backwards and upwards to open the smoke-proof and fire-proof casementwindow is arranged above the rail back at the top of the inclined end fixed rail; a windproof window is arranged in the fireproof window hole below the straight end fixing rail and comprises a left window sash and a right window sash which are opened front and back. The smoke-proof and fire-proof casement window can disconnect a long-distance movable rail, and is particularly suitable for being installed and used when the smoke-proof and fire-proof casement window is adopted to close a smoke-proof and fire-proof window opening.