In 20 century, the space language in sculptural arts had greatly developed by changing the sole connotation of classical sculpture from the following aspects. It had new expression of space language; it defined space from the false or true situation; it explained space from the perspective of abstract geometric mouldmaking. Thus, the space is unfolded from the perspective of line moulding and motion. And sculptures demonstrate visual charms of arts. Those sculptors' courage to challenge the tradition and the unique space language in sculptural arts will have tremendous effect on sculptural development.