Frameless curtain wall opening window

The utility model provides a frameless curtain wall opening window which comprises a window sash capable of being opened outwards, and the window sash comprises a sash frame and a glass panel arranged on the sash frame. The top end of the window sash is hinged to the curtain wall keel, the curtain wall keel is provided with a receding area matched with the sash frame, and when the opening window is closed, the sash frame is arranged in the receding area; the outward side of the sash frame is provided with a connecting part extending outwards along the glass panel, and the connecting part is clamped with an outer decorative buckle plate arranged on the periphery of the glass panel; a first waterproof adhesive tape is arranged between the connecting part and the curtain wall keel; and a second waterproof adhesive tape is arranged between the inward side of the sash frame and the curtain wall keel. According to the curtain wall opening window, the problems that an existing curtain wall opening window is provided