Using statistical approaches, industrial product designs can be optimized quickly and reliably. The Taguchi method is a statistical approach that helps us to optimize the process parameters and help us to save time in terms of labor and cost. In this study, the optimization of the design parameters by using the Taguchi method for the design of the C-type snap-fit connection, which is one of the flexing fasteners used in many areas of the industry, was investigated. The design and analysis of the study was carried out by using ANSYS software. The design parameters were optimized and the effective parameters were determined. ANOVA analysis was performed to determine the effective parameters. In addition, full factorial analysis was performed to verify the method used. For example, the optimum normal stress value obtained with the Taguchi array was obtained for the combination of H1=0.4;R1=3;alpha 1=40;alpha 2=89;y=6 and material is PLA. When we examine the table in Figure 4, we can see that the result of 328740.27 among 729 test results and the result of the parameters in the Taguchi set match.