Abstract: A practical and refined structural system is a key factor in shaping the internal spaces and external forms of buildings, and it also is a rational construction basis for the expression of architectural aesthetics. The traditional use of arch structure has been developed to all aspects of buildings. For large numbers of public building spaces, the contemporary arch structure has broken through the traditional paradigm and template, created distinctive spaces and atmospheres for museums, libraries and other public buildings by spatial structure forms, expressing clear technical aesthetic characteristics.