The invention discloses a lifting window, which comprises a window frame, a fixed window sash, a movable window sash and a transverse muntin, wherein the window frame consists of a side frame and a side frame cover plate; the side frame cover plate is clamped and connected with one side of the side frame; the side frame cover plate and an isolation baffle plate arranged in the middle part of the side frame form a movable window sash clamp groove; the isolation baffle plate arranged in the middle part of the side frame and a fixed baffle plate arranged at the other side of the side frame form a fixed glass clamp groove; the transverse muntin is fixed in the middle part of a vertical side frame; a U-shaped clamp groove matched with the fixed window sash is formed in the upper part of the transverse muntin; the lower side of the fixed window sash is fixed in the U-shaped clamp groove of the transverse muntin; the left side, the upper side and the right side of the fixed window sash are respectively fixed in the fixed glass clamp groove of the side frame; and the movable window sash is glidingly matched in the movable glass clamp groove of the side frame. The lifting window has the advantages that the window sash is of a vertical structure; a waterproof cover plate is arranged at the lower part of the window frame; the lifting window has good wind-proof and waterproof performance in the closed state; glass is directly fixed inside a sectional material through the side frame cover plate matched with a side frame fixed clamp groove; and the mounting and the dismounting are convenient.