In the era of science and technology, due to the continuous development of digital technology and the continuous integration of traditional grassland culture, traditional grassland culture has been forced to start the road of digital transformation, and what method can be used to effectively and quickly improve grassland cultural symbols for public art The level of transformation has become one of the current research topics of great concern. In response to this problem, it is of great research significance for the field of public art transformation of grassland cultural symbols. With the in-depth research on digital transformation technology, the research on the transformation of parametric technology in public art is gradually carried out, and its performance advantages are of great significance to solving the problem of cultural symbol art transformation. This paper aims to study the public art transformation of grassland cultural symbols based on parametric technology. Through the analysis and research of grassland cultural symbols and parametric technology, it can be applied to the construction of the public art transformation model of cultural symbols of the Senate, so as to solve the problem of the current situation. The problems of low conversion and poor quality of public art of grassland cultural symbols. This paper analyzes grassland cultural symbols, public art transformation and parametric technology, conducts an experimental analysis on the transformation of grassland cultural symbols to public art based on parametric technology, and uses relevant theoretical formulas to explain. The results show that the comprehensive satisfaction index of the method based on parameterization technology is higher than that of the traditional method, and the difference between the two is 16.53%. It can be seen that this method can meet the needs of improving the level of public art transformation of grassland cultural symbols, and the efficiency and quality are greatly improved.