High-end metal surface composite curtain wall and curtain wall system thereof

The invention belongs to the field of curtain walls, and particularly relates to a high-end metal surface composite curtain wall and a curtain wall system thereof, the high-end metal surface composite curtain wall comprises a composite curtain wall main body and a fixing unit; the fixing unit is arranged on the side wall of the composite curtain wall body. The fixing unit comprises a square fixing frame, a fixing keel, a corner angle fixing bolt and an auxiliary mechanism; through the arranged fixing unit, when a composite curtain wall body is replaced, a new composite curtain wall body slides into the inner side wall of the composite curtain wall body, a magnetic fixing block is clamped into a groove of a square fixing frame in a sliding mode and penetrates through an inserting magnetic rod, and a fixing limiting plate is used for driving a blocking block to block the magnetic fixing block; the sliding clamping block is clamped on the side wall of the fixed limiting plate in a sliding mode to be limited and