The utility model discloses a connecting turning plate structure for a climbing frame. The device comprises a connecting plate (1) and a turning plate (2), the connecting plate (1) comprises an antiskid plate (11), reinforcing ribs (12), a large square tube outer frame (13) and a small square tube outer frame (14). The turning plate (2) and the antiskid plate (11) are arranged side by side and arerotatably connected; the small square tube outer frame (14) is arranged along the first long side edge of the connecting turning plate (2) of the antiskid plate (11); the large square tube outer frame (13) is arranged along the second long side edge of the antiskid plate (11); the small square tube outer frame (14) is arranged along the long side edge, connected with the turning plate (2), of theantiskid plate (11); due to the fact that the turning plate can be opened in an overturning mode and abuts against the wall surface, no gap exists between the wall surface and the connecting plate, the connecting plate can be directly connected with the scaffold board through the large square tube outer frame, the reinforcing ribs are connected between the large square tube outer frame and the small square tube outer frame, and therefore the connecting structure is simple and meets the strength requirement.