Abstract: This paper combines the TRIZ theory with functional analysis,establishes a TRIZ-based functional analysis model,and constructs a corresponding technological innovation process for the bucket foundation. Taking the installation and load-bearing analysis of the new composite bucket foundation as an example,this paper presents the process of solving contradiction through technological innovation. The results showed that the proposed innovation process is suitable for the improvement and optimization of the bucket foundation,and has a better supporting effect on enhancing the innovation efficiency of the bucket foundation.