This study aimed to perform a further analysis regarding the Reinforced Concrete Submerged Floating Tunnel of Triangle Cables Configuration (RC-SFT TCC) system fitting to attain the structure with the optimum configuration. The TCCs were inducted into several configurations, namely C1, C2, C3, and C4 that remined the two angle inclined cables of 36° and 45° respectively with a different pattern. Subsequently, a numerical modelling was also carried out using Finite Element Method (FEM) with the employment of SAP2000. Buoyancy Weight Ratio (BWR) of 1.3-1.5 were also added in this study to provide the optimum of the RC-SFT configuration. The modelling result showed that the C1 provided the most optimum configuration due to the maximum axial forces of 1145.1 kN. The C1 was also considered giving a better performance due to load-deformation behaviour than the C2, C3, and C4 models. Finally, it can be confirmed that RC-SFT is feasible to be applied as an alternative infrastructure due to its results.