At present,there are more and more special-shaped components in the field of architecture with different forms.The construction operation of fair-faced concrete mostly depends on manual work,and the degree of mechanization and standardization is not high.The molding effect brought by different construction technologies is completely different.Taking Fuyang Science and Technology Museum engineering as an example,this paper introduces the difficulties of construction technology of spiral curved surface fair-faced concrete and the selection of construction scheme.By using the cooperation of BIM parametric design and automatic feeding equipment,the construction technology of special-shaped back ridge and double-sided template reinforcement system is determined for reference.